taxonID	type	description	language	source
DA1C046C8AEB59189AA5B84222D73BEA.taxon	description	Figs 1, 2, 3, 12 A – C	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
DA1C046C8AEB59189AA5B84222D73BEA.taxon	etymology	Etymology. The specific name is named after the collector, American entomologist Charles Fuller Baker (1872 – 1927), who worked in the Philippines from 1899 – 1903.	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
DA1C046C8AEB59189AA5B84222D73BEA.taxon	diagnosis	Diagnosis. The new species is similar to G. ophiria Eichenberger, 2012 from Malaysia in the presence of droplike pits on the sternum, sharply pointed denticles along the lateral margin of the carapace, and posterolateral spikes on the carapace, but can be distinguished by the carapace with three posterolateral spikes (vs two; cf. Fig. 1 E and Eichenberger et al. 2012: fig. 15 C), the booklung covers are smooth (vs elevated from body surface; cf. Fig. 3 F and Eichenberger et al. 2012: fig. 15 I, J), and the embolus has a folded tip (vs straight; cf. Fig. 2 B, F and Eichenberger et al. 2012: fig. 16 A – C).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
DA1C046C8AEB59189AA5B84222D73BEA.taxon	description	Description. Male (holotype). Total length 2.78; carapace 1.24 long, 0.91 wide; abdomen 1.49 long, 1.01 wide. Habitus as in Fig. 1 A – C. Body reddish brown, legs yellow. Carapace (Fig. 1 D, E): surface smooth, with 3 pairs of posterolateral spikes, posterolateral edge with pair of pits; lateral margin with pointed denticles; pars cephalica slightly elevated in lateral view. Eyes (Fig. 1 D, E): ALE largest, PLE smallest; posterior eye row straight viewed from above, procurved from front; ALE separated by about their radius; ALE separated from edge of carapace by about 0.8 times their diameter. Sternum (Fig. 1 F): longer than wide, surface smooth, with radial furrows of large, roundish, droplike pits between coxae. Abdomen (Fig. 1 A – C): dorsal scutum ovoid, punctate, densely covered with short setae; booklung covers middle size; pedicel tube short, without dorsolateral extension; scuto-pedicel region without scutal ridge. Palp (Figs 2 A – F, 12 A – C): pale-orange; bulb distally tapering, ending as small conical extension (ce); cymbium extending beyond distal tip of bulb; embolus (em) dark, long, slender, lamellar, with folded tip, half way to distal tip split into second, slightly shorter, mesal embolic accessory appendage (ma), adjacent to third, slightly shorter, lamellar conductor (co). Female (paratype). Total length 2.88; carapace 1.35 long, 0.99 wide; abdomen 1.56 long, 1.21 wide. As in male, except as noted. Epigastric area (Fig. 3 E, H): externally without special features. Endogyne (Fig. 3 I): receptacle broadly oval, with ovoid secretory sac (ssa), globular appendix (gap) narrow, with anterior paddle-like sclerite (psc) and nail-like process (na), lateral sclerites functioning as muscle attachments.	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
DA1C046C8AEB59189AA5B84222D73BEA.taxon	distribution	Distribution. Known only from the type locality (Fig. 13).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
49D320C31C515F978FD4B50BE27FE4CE.taxon	description	Figs 4, 5, 12 D – F	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
49D320C31C515F978FD4B50BE27FE4CE.taxon	etymology	Etymology. The specific name is a noun in apposition taken from the type locality.	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
49D320C31C515F978FD4B50BE27FE4CE.taxon	diagnosis	Diagnosis. The new species is similar to G. comosa Tong & Li, 2009 from China in the smooth carapace and the pointed conical extension of bulb, but can be distinguished by the abdomen strongly constricted at anterior part (vs not constrict; cf. Fig. 4 A and Tong and Li 2009: fig. 1 A), pedicel tube with colorless, almost transparent directed hairs (vs lacking; cf. Fig. 4 I and Tong and Li 2009: fig. 2 C), and the scuto-pedicel region with a curved scutal ridge and a small round knob (vs lacking, but with nearly rectangular lateral ridge; cf. Fig. 4 I and Tong and Li 2009: fig. 2 B, C).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
49D320C31C515F978FD4B50BE27FE4CE.taxon	description	Description. Male (holotype). Total length 2.34; carapace 0.95 long, 0.78 wide; abdomen 1.68 long, 1.00 wide. Habitus as in Fig. 4 A – C. Body yellow, chelicerae and legs lighter. Carapace (Fig. 4 C, D, F): surface smooth; pars cephalica strongly elevated in lateral view; lateral margin with a row of finely hairs. Eyes (Fig. 4 D, F): ALE largest, PLE smallest; posterior eye row recurved viewed from above, procurved from front; ALE separated by less than their radius; ALE separated from edge of carapace by about 0.5 times their diameter. Sternum (Fig. 4 E): finely reticulate, with narrow, transverse palpal groove, covered with thin hairs standing in small pits, radial furrows present. Abdomen (Fig. 4 A, H, I): dorsal scutum ovoid, punctate, densely covered with short setae, anterior part strongly constricted; booklung covers very small; pedicel tube short, without dorsolateral extension, with colorless, almost transparent directed hairs; scuto-pedicel region with curved scutal ridge and a small round knob. Palp (Figs 5 A – F, 12 D – F): yellowish; bulb distally tapering, ending as pointed conical extension (ce); cymbium not extending beyond distal tip of bulb; with long slender, lamellar embolus (em), adjacent to an embolic accessory appendage (ma) and a lamellar conductor (co). Female. Unknown.	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
49D320C31C515F978FD4B50BE27FE4CE.taxon	distribution	Distribution. Known only from the type locality (Fig. 13).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
696C6B731F2555389C13541A3D329CB8.taxon	description	Figs 6, 7, 8, 12 G – I	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
696C6B731F2555389C13541A3D329CB8.taxon	etymology	Etymology. The specific name is named after the collector, the Dutch entomologist Edward Richard Jacobson (1870 – 1944).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
696C6B731F2555389C13541A3D329CB8.taxon	diagnosis	Diagnosis. The new species is similar to G. coniacris Eichenberger, 2012 from Malaysia and Indonesia in the smooth carapace and the broadly-oval receptacle, but can be distinguished by the radial furrow of sternum lacking the droplike pits (vs with droplike pits; cf. Fig. 6 G and Eichenberger et al. 2012: fig. 20 D), the scuto-pedicel region without scutal ridges (vs with paired curved scutal ridges; cf. Fig. 8 H and Eichenberger et al. 2012: fig. 20 H), and the bulb with a round conical extension (vs triangular; cf. Figs 7 A, 12 G and Eichenberger et al. 2012: fig. 21 D – F).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
696C6B731F2555389C13541A3D329CB8.taxon	description	Description. Male (holotype). Total length 1.50; carapace 0.59 long, 0.47 wide; abdomen 0.90 long, 0.51 wide. Habitus as in Fig. 6 A – C. Body yellow, chelicerae and legs lighter. Carapace (Fig. 6 D, E, F): surface smooth; pars cephalica slightly elevated in lateral view. Eyes (Fig. 6 D, E): ALE largest, PLE and PME nearly equal size; posterior eye row straight viewed from above, procurved from front; ALE nearly touching; ALE separated from edge of carapace by about 0.6 times their diameter. Sternum (Fig. 6 G): smooth, with narrow, transverse palpal groove, radial furrows present. Abdomen (Fig. 6 A – C): dorsal scutum ovoid, punctate, densely covered with short setae; booklung covers middle size; pedicel tube short, without dorsolateral extension; scuto-pedicel region without scutal ridge. Palp (Figs 7 A – F, 12 G – I): pale-orange; bulb distally tapering, ending as round conical extension (ce); cymbium not extending beyond distal tip of bulb; embolus (em) dark, long, slender, lamellar; embolic accessory appendage (ma) with a subdistal excavation; conductor (co) shorter, lamellar. Female (paratype). Total length 1.66; carapace 0.58 long, 0.48 wide; abdomen 0.96 long, 0.58 wide. Habitus (Fig. 8 A – C) as in male, except as noted. Epigastric area (Fig. 8 G, I): externally without special features. Endogyne (Fig. 8 J): receptacle (re) broadly oval, with ovoid secretory sac (ssa), globular appendix (gap) about half the length of receptacle, with an anterior paddle-like sclerite (psc) and a nail-like process (na), with lateral sclerites functioning as muscle attachments.	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
696C6B731F2555389C13541A3D329CB8.taxon	distribution	Distribution. Known only from the type locality (Fig. 13).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
FEB15133B41C5245B11F3466FE2BC2BC.taxon	type_taxon	Type species. Gamasomorpha cataphracta Karsch, 1881 from Japan.	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
1ADEB79F74C850EE821A67E2E499EC8D.taxon	description	Figs 9, 10, 11, 12 J – L	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
1ADEB79F74C850EE821A67E2E499EC8D.taxon	diagnosis	Diagnosis. This species is similar to G. fricki Eichenberger, 2012 from Vietnam in the striated carapace and the pointed conical extension of bulb, but can be distinguished by the radial furrow of the sternum lacking the droplike pits (vs with droplike pits; cf. Fig. 9 F and Eichenberger et al. 2012: fig. 27 D), the scuto-pedicel region with a scutal ridge (vs lacking; cf. Fig. 11 H and Eichenberger et al. 2012: fig. 28 A), and the booklung covers are very small (vs large; cf. Fig. 11 G and Eichenberger et al. 2012: fig. 27 C).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
1ADEB79F74C850EE821A67E2E499EC8D.taxon	description	Description. See Tong and Li (2014).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
1ADEB79F74C850EE821A67E2E499EC8D.taxon	distribution	Distribution. China (Taiwan), Indonesia (Fig. 13).	en	Bai, Yang, Bian, Dongju, Tong, Yanfeng, Hörweg, Christoph (2025): Three new species of the genus Gamasomorpha Karsch, 1881 (Araneae, Oonopidae) from the Philippines and Sumatra, Indonesia. ZooKeys 1258: 313-331, DOI: 10.3897/zookeys.1258.168616
