Comatella stelligera ( Carpenter, 1888 )

Kogo, Ichizo, Fujita, Toshihiko & Kubodera, Tsunemi, 2019, Shallow-water Comatulids (Echinodermata: Crinoidea) from Ambon and Lombok Islands, Indonesia, Species Diversity 24, pp. 229-246 : 231

Comatella stelligera ( Carpenter, 1888)

Actinometra stelligera Carpenter, 1888: 308 , pl. 5 fig. 5a–d, pl. 58 figs 1, 2; Hartlaub 1891: 104.

Comatella stelligera —A. H. Clark 1909b: 136; 1912a: 68; 1912b: 3; 1913: 3; 1918: 5, pl. 2; 1929: 636; 1931: 98, pl. 4 figs 6–9; 1936: 296; Reichensperger 1913: 84; H. L. Clark 1915: 101; 1921: 13; 1946: 26; Gislén 1922: 18, figs 7–9; 1940: 3; A. M. Clark and Rowe 1971: 15 (key); A. M. Clark 1972: 85; Gibbs et al. 1976: 110; Liao 1983: 263; Chen et al. 1988: 76, fig. 6; Liao and A. M. Clark 1995: 27, fig. 12, pl. 1 fig. 2; Fabricius 1994: 1228 (table); Messing 1994: 239 (list); Rowe and Gates 1995: 147; Kogo 1998: 14, fig. 9; 2002: 4; Lane et al. 2000: 476 (table); Pilcher and Messing 2001: 16 (table); Kirkendale and Messing 2003: 527; Kogo and Fujita 2005: 326; Mekhova and Britayev 2012: 918.

Actinometra maculata Carpenter, 1888: 307 , pl. 5 fig. 1a–d, pl. 55 fig. 2; Hartlaub 1891: 105.

Comatella maculata —A. H. Clark 1909b: 138; 1911b: 16; 1912a: 70; 1912b: 4; 1913: 3; 1918: 7; 1931: 112, pl. 20 fig. 20; 1937: 98; Reichensperger 1913: 84; H. L. Clark 1915: 101; 1921: 12; 1946: 26; Gislén 1922: 16, figs 4–6; A. M. Clark and Spencer Davis 1966: 598 (list); A. M. Clark and Rowe 1971: 15 (key); A. M. Clark 1972: 84; Meyer and Macurda 1980: 83; Liao, 1983: 263, pl. 1; Chen et al. 1988: 76, fig. 4; Fabricius 1994: 1228 (table); Messing 1994: 239 (list); Liao and A. M. Clark 1995: 27, pl. 1 fig. 1; Rowe and Gates 1995: 146; Lane et al. 2000: 476 (table); Kogo 2006: 225.

Actinometra notata Carpenter, 1889: 312 , pl. 26 figs 6–12.

Antedon basset-smithi Bell, 1894: 399 , pl. 24.

Material examined. 1 specimen. Lombok Is. NSMT E-8214 (1 specimen), Gili Air I ., February 5, 1994.

Description. Centrodorsal discoidal, 4.2 mm across, 1 mm thick, with cirrus sockets in 1 partly 2 rows; aboral pole flat. Cirri XXII, 18–19, 13 mm long. Longest cirrals (5 th –7 th) nearly 2 times longer than wide; cirrals beyond 5 th –6 th with a distal transverse edge; 5–8 distal cirrals with a middle transverse ridge. Radials wholly concealed by centrodorsal. IBr 2; Ibr 1 oblong in contact laterally: Ibr 2 (axil) low pentagonal. IIBr all 2. Rays in a plane. Ossicles of division series and basal brachials smooth without distal spines. Arms 20, 80 mm long. First syzygy at br 1+2; middle brachials beyond br 5 slightly shorter than wide, with oblique articulation and slightly everted distal margin. P 1 longest, 16 mm long, of 45 segments; combs of 13–15 teeth confluent with inner edge of pinnulars. Pinnule combs to P 4. First 2 pinnulars of P 2 –P 4 each with a large fin-like expansion.

Remarks. Among the 10 Comatella specimens from Gili Air of Lombok Island, 9 larger specimens (20–50 arms) were identified as C. nigra , and only this smallest specimen (20 arms) was as C. stelligera . The larger specimens have twisted division series and stout arms, while this specimen has plane division series and slender arms.

Distribution. Maldives, Sri Lanka, Bay of Bengal, Indonesia, northern Australia, Philippines, China (A. M. Clark and Rowe 1971); Myanmar (A. M. Clark 1972); southern Vietnam ( Mekhova and Britayev 2012); Papua New Guinea, Micronesia ( Meyer and Macurda 1980; Messing 1994); Timor Sea ( Rowe and Gates 1995); South Pacific Ocean (A. M. Clark and Rowe 1971); South China Sea ( Lane et al. 2000); Taiwan ( Chen et al. 1988); Japan (A. M. Clark and Rowe 1971; Kogo 1998, 2006; Pilcher and Messing 2001; Kogo and Fujita 2005). Depth range: 0–210 m ( Lane et al. 2000).