Cristapseudes omercooperi ( Larwood, 1954 )

DRUMM, DAVID T. & HEARD, RICHARD W., 2011, Systematic revision of the family Kalliapseudidae (Crustacea: Tanaidacea), Zootaxa 3142 (1), pp. 1-172 : 59-64

Cristapseudes omercooperi ( Larwood, 1954)

( Figs 36–39 )

Cristapseudes omercooperi Băcescu, 1980: 362–365 , 375, 377–378, Figs. 1–2. Guţu, 1996a: 74. Bamber, 1998: 184. Bamber et al., 2003: 52, 2009: 1–3 , 9–10. Bamber et al., 2009: 1 , 9, 10. Kalliapseudes omer –cooperi Larwood, 1954: 562–567, Figs. 1–2. Lang, 1956a: 205, 209, 222. Shiino, 1964: 191, Fig. 101 ,

1966: 487. Băcescu, 1978: 211. Guţu, 1981: 92. Kalliapseudes (Kalliapseudes) omer –cooperi. Lang, 1956a: 210, 216. Kalliapseudes Omer –cooperi Băcescu, 1961: 161, 163–165, Figs. 65–77 . Kalliapseudes Omer –Coperi. Băcescu, 1961: 167. Kalliapseudes Omer –Cooperi Băcescu, 1961: 162, 164, 166. Kalliapseudes omercooperi . Lauterbach, 1970: 120, Makkaveeva, 1971: 97, Băcescu, 1978: 206. Bamber, 1998: 184.

Type material. Neotype (present study).

Material examined. Neotype: adult female with oostegites ( NHM 2010.279 ), station NMI H27, 31°41.634'N 34°32.763'E, 20 m depth, Israel, 17 August 2005, coll. Dr. Roger Bamber ( NHM); non–type material:> 100 specimens (adult males, females, juveniles, mancas), GCRL 2990 same collection data as neotype; 34 permanent slides (adult female, adult male, neutrum), Kuwait Bay, Persian Gulf, det. Jurgen Sieg, MFN.

Diagnosis. Pleotelson with two terminal long plumose setae. Female antennule first peduncle article with one very long and several short distoventral spiniform setae not arranged in a linear fashion. Antenna first peduncle article with one long simple seta on outer distal corner. Maxillule inner endite with three setae. Pereopods 2 and 3 propodus with two distal “W” shaped setae. Pereopod 4 propodus with dorsodistal ring of short pectinate setae. Pereopod 5 without dorsodistal ring of short pectinate setae. Pereopod 6 dactylus longer than ischium, merus, carpus and propodus combined; without subterminal seta; no apparent sexual dimorphism. Male cheliped with normal fixed finger having one small dentiform apophysis between fixed finger and dactylus; dactylus unguis long, pointed.

Type locality. Port Taufiq , Gulf of Suez, NE Egypt, northern Indian Ocean .

Geographic distribution. NW Indian Ocean (Gulf of Suez, Red Sea, Gulf of Aden, Gulf of Oman, Kuwait Bay, Persian Gulf), Mediterranean waters of Israel, and Alexandria, Egypt, 9–67 m depth (Fig. 1, number 12).

Remarks. This species appears to be most closely related to C siamensis but it can be distinguished by: 1) the shape of the male chela ( Fig. 39B ), 2) pereopod 6 with longer dactylus ( Fig. 38G ), and 3) pereopods 2 and 3 with propodus having two spiniform setae with three prong–like extensions giving them a “W” shape appearance ( Fig. 38B ). Cristapseudes omercooperi also has more sensory setae on the dactylus of pereopods 4 and 5 ( Figs. 38C–F , ~ 10 in C. omercooperi and four in C. siamensis ). Another minor difference is the number of setae of the inner endite of the maxillule ( Fig. 36I , three in C. omercooperi and four in C. siamensis ). We also did not notice a small terminal spiniform seta on the labial palp ( Fig. 36H ) or a long, smooth spiniform seta on the epignath ( Fig. 37E ), as in C. siamensis . The number of articles of the antenna flagellum ( Fig. 36C ) showed intraspecific variation (5 or 6 articles).

In their key to the species of Cristapseudes, Gutu and Angsupanich (2005) did not mention the female antennule of C. omercooperi as having any distoventral spiniform setae on the first peduncle article. Examination of the antennule ( Fig. 36B ) from a ventral aspect revealed the presence of spiniform setae, albeit of a different nature than C. siamensis . The spiniform setae of C. siamensis are arranged linearly while those of C. omercooperi have an irregular arrangement. Cristapseudes omercooperi also has one very long and several short spiniform setae, while C. siamensis has only short spiniform setae. Unfortunately, Larwood (1954) did not describe or illustrate the female antennule.

Larwood (1954) mentioned that ciliates were attached to the antennae and uropods. The material we examined also had peritrich ciliates attached to the antennae and most of the pereopods (illustrated in Fig. 38A on the basis of pereopod 3).

Of the material examined here, an adult female was selected as the neotype from near the type locality. Cristapseudes omercooperi is the type species of the genus so the designation of a neotype is important in order to create stability within the genus. Larwood (1954) did not designate any type material. Băcescu (1961, 1980) examined material of C. omercooperi from the Mediterranean waters of Israel and the Gulf of Aden but did not designate a neotype and did not register the material in the collections of the museum (Guţu, pers. comm.). Băcescu noticed large–sized (5.5–7mm) and small–sized (3.5–4mm) populations coexisting in the Gulf of Aden and mentioned that the small–sized population was more similar to the Mediterranean population (also 3.5–4mm body length). Hyposphaenia are absent or reduced in this species (only a very small caudally directed spine on the second and third thoracic sternites). Băcescu (1980) also mentions that this species is tubiculous.

Cristapseudes siamensis Gu ţ u and Angsupanich, 2005

Cristapseudes siamensis Guţu and Angsupanich 2005: 44 , Figs. 1–4.

Kalliapseudes (K.) sp. 1. Guţu and Angsupanich 2004b: 76.

Type material. Holotype female no. 250.270, MHN Grigore Antipa; allotype male no. 250.271, MHN Grigore Antipa; paratypes no. 250.272 (8 females, 1 male and 1 juvenile), MHN Grigore Antipa and no. PSUZC 20050329.01 (4 females and 2 males), Prince of Songkla University Natural History Museum, Hat Yai, Thailand.

Material examined. None available for study. Diagnosis prepared from original description ( Gutu and Angsupanich, 2005).

Diagnosis. Pleotelson with two terminal long plumose setae. Female antennule first peduncle article with several short distoventral spiniform setae arranged in a linear fashion. Antenna first peduncle article without one long simple seta on outer distal corner. Maxillule inner endite with four setae. Pereopods 2 and 3 propodus without two distal “W” shaped setae. Pereopod 4 propodus with dorsodistal ring of short pectinate setae. Pereopod 6 dactylus approximately as long as merus, carpus and propodus combined; without subterminal seta. Male cheliped with normal fixed finger having one small dentiform apophysis between fixed finger and dactylus; dactylus unguis long, pointed. Male cheliped with reduced fixed finger having one long spiniform apophysis on the anterodistal corner,

near dactylus insertion; dactylus unguis very small, tubercle–like.

Cristapseudes unicus Gu ţ u, 2006

Cristapseudes unicus Guţu 2006: 153 , Figs. 238–252.

Type material. Holotype female no. W27979, Queensland Museum , Brisbane, Australia.

Material examined. None available for study. Diagnosis prepared from original description ( Gutu, 2006).

Diagnosis (adult female). Antennule first peduncle article with one short distoventral spiniform seta. Antenna first peduncle article without one long simple seta on outer distal corner. Pereopod 4 propodus with dorsodistal ring of short pectinate setae. Pereopod 6 dactylus approximately as long as ischium, merus, carpus and propodus combined; with subterminal seta.

Type locality. Mackay , Coral Sea, Australia, 100–180 m depth (Fig. 1, number 14) .

Geographic distribution. Known from type locality only.

Figures

FIGURE 36. Cristapseudes omercooperi (NM27, Israel), female with oostegites. A, dorsal view of body; B, antennule (ventral); C, antenna; D, labrum; E, left mandible; F, right mandible; G, right molar process; H, labium; I, maxillule. Scale bars: A =

FIGURE 37. Cristapseudes omercooperi (NM27, Israel), female with oostegites. A, maxilla; B, outer lobe of fixed endite; C, maxilliped; D, maxillipedal endite; E, epignath; F, cheliped (outer); G, chela (outer); H, pereopod 1 (inner); I, pereopod 1

FIGURE 38. Cristapseudes omercooperi (NM27, Israel), female with oostegites. A, pereopod 3 (inner); B, pereopod 3 dactylus; C, pereopod 4 (inner); D, pereopod 4 (outer); E, pereopod 5 (outer); F, pereopod 5 (inner); G, pereopod 6 (inner); H, pleopod; I, uropod. Scale bars: A, C, E, G, H = 0.1 mm; I = 0.05 mm.

FIGURE 39. Cristapseudes omercooperi (NM27, Israel), adult male. A, antennule (ventral); B, cheliped (inner). Scale bars = 0.1 mm.

FIGURE 65. Kalliapseudes gutui n. sp., adult male. A, dorsal view of body; B, antennule; C, antenna; D, left mandible; E, left mandibular palp; F, labium. Scale bars: A = 1.0 mm; B, C = 0.2 mm; E = 0.1 mm; F = 0.05 mm.

FIGURE 66. Kalliapseudes gutui n. sp., adult male. A, maxillule; B, maxilla; C, maxilliped; D, maxillipedal endite; E, right cheliped (inner); F, left chela (inner); G, cheliped exopodite. Scale bars: A, B = 0.05 mm; C, D = 0.2 mm.

FIGURE 67. Kalliapseudes gutui n. sp., adult male. A, pereopod 2 (outer); B, pereopod 2 dactylus; C, pereopod 3 (outer); D, pereopod 4 (inner); E, pereoopd 4 (outer); F, pereopod 5 (outer); G, pereopod 5 (inner). Scale bars = 0.2 mm.

FIGURE 68. Kalliapseudes gutui n. sp., adult male. A, pereopod 6 (inner); B, pleopod; C, uropod. Scale bars: A, B = 0.2 mm; C = 0.1 mm.

FIGURE 69. Kalliapseudes profundus n. sp., female with oostegites. A, dorsal view of body; B, antennule; C, antenna; D, left

FIGURE 70. Kalliapseudes profundus n. sp., female with oostegites. A, maxillule; B, maxilla; C, maxilliped; D, cheliped (outer); E, pereopod 1 (outer); F, pereopod 2 (outer); G, pereopod 2 propodus (inner). Scale bars: A, B = 0.1 mm; C, D, F = 0.2 mm; E = 0.3 mm.

FIGURE 71. Kalliapseudes profundus n. sp., female with oostegites. A, pereopod 3 (outer); B, pereopod 4 (inner); C, pereo-

FIGURE 72. Kalliapseudes profundus n. sp., female with oostegites (A–C); adult male (D–F). A, pereopod 6 propodus and dactylus (outer); B, pleopod; C, uropod; D, antennule; E, cheliped (outer); F, pereoopd 6 (inner). Scale bars: B, D, E, F = 0.2 mm; C = 0.1 mm.

FIGURE 73. Kalliapseudes quadrirobustirostris n. sp., adult male. A, dorsal view of body; B, antennule (ventral); C, antenna; D, terminal spiniform seta of mandibular palp; E, labium; F, cheliped (outer). Scale bars: A = 1.0 mm; B, C, F = 0.2 mm; D, E = 0.05 mm.

FIGURE 75. Kalliapseudes quadrirobustirostris n. sp., adult male. A, pereopod 5 (outer); B, pereopod 5 (inner); C, pereopod 6 (outer); D, uropod. Scale bars: A, C = 0.2 mm; D = 0.1 mm.

FIGURE 76. Kalliapseudes syntresis n. sp., female with oostegites. A, dorsal view of body; B, pleotelson; C, antennule; D, antenna; E, left mandible; F, incisor process, lacinia mobilis and spine row of left mandible; G, terminus of mandibular palp; H,

FIGURE 77. Kalliapseudes syntresis n. sp., female with oostegites. A, chela (outer); B, pereopod 1 (inner); C, exopodite of pereopod 1; D, pereopod 1 (outer); E, pereopod 2 (outer); F, pereopod 3 (outer). Scale bars: B = 0.3 mm; E, F = 0.2 mm.

FIGURE 101. A. Tanapseudes sinensis, uropod. B. Tanapseudes gutui, uropod. C. Tanapseudes gutui, male pereopod 1 propodus and dactylus. D. Tanapseudes ormuzana, male pereopod 1 propodus and dactylus. E. Tanapseudes gutui, pereopod 5. F. Tanapseudes ormuzana, pereopod 5.