SYLLIS SPONG-ICOLA. 197 



The relationships of this Syllis appear to be with such forms as Trypanosyllis zebra 

 and perhaps 8. gracilis. 



7. Syllis spongicola, Grube, 1855. Plate LI, fig. 4; Plate LXX, fig. 21 — foot 



of bud; Plate LXXIX, fig. 15— bristle. 



Specific Characters. — Head comparatively small, with two long and large palpi 

 tapered distally. Eyes four, small, the anterior the larger, accompanied or not by two 

 pigment-dots anteriorly. Tentacles and tentacular cirri of moderate length, articulated. 

 Body of about 76 — 100 segments, pale orange, translucent yellowish or sand-coloured, 

 translucent bluish towards tip of tail, and from an inch to an inch and a half or more in 

 length. Anal cirri short. Proboscis with ten soft papillae and a tooth. Proventriculus 

 about the tenth segment, and occupying seven segments. Foot with a dorsal cirrus of 

 25 — 30 segments. Bristles simple, of a peculiar hamate character, shaped somewhat 

 like an abbreviated bill-hook. Ventral cirri leaf-shaped, not reaching the tip of the 

 setigerous region. 



Synonyms. 



1829. Nereis teticola, Delle Cliiaje. Mem., pp. 175, 195, Tav. lxvi, f. v (?). 



1841. „ „ idem. Descrizione, v, p. 103. 



1851. Syllis tethycola, Grube. Fam. Annel., p. 62. 



1855. „ spongicola, Grube. Arch. f. Naturg., p. 104, pi. iv, f. 4. 



1864. „ „ idem. Insel. Lussin, p. 84. 



1865. „ spongicula, De Quatrefages. Annel., II, p. 88. 

 1868. „ hamata, Claparede. Annel. Nap., p. 195, pi. xv, f. 2. 



1870. „ oligochseta, Bobretzky. Annel. de la Mer Noire, f. 51 and 52 {fide aut.). 

 1875. „ spongicola, Marion and Bobretzky. Ann. Sc. Nat. 6 e ser., t. ii, p. 24. 



1878. „ violacea-flava, Grube. Ann. Semp., p. 115. 



}} „ hamata, Langerhans. Zeitsch. f. w. ZooL, xxxiv, p. 128. 



1879. „ spongicola, Marion. Ann. Sc. Nat., 6 e ser., t. viii, art. 7, p. 19, f. 4 — 4 e. 

 1881. Haplosyllis hamata, Langerhans. Nov. Act. Leop. -Carol. Akad., p. 102. 



„ „ aurantiaca, Eisig. Mitt. Zool. Stat. Neap., II, p. 270. 



1885. Syllis hamata, Cams. Fauna Medit., p. 225. 

 „ „ spongicola, idem. Ibid., p. 228. 



1886. Haplosyllis spongicola, Albert. Mitt. Zool. Stat. Neap., Bd. vii, pp. 1 — 20, pi. i, f. 1 — 17. 



i} „ (Syllis) hamata, Langerhans. Zeitsch. f. w. Zool., xxxii, p. 527, Taf. 31, 



f . 1 a and 1 b. 



1887. Syllis (Haplosyllis) „ De St. Joseph. Ann. Sc. Nat., 7 e ser., i, p. 142, pi. vii, f. 5 — 8. 

 1893. Haplosyllis hamata, Marenzeller. Zool. Ergebn., II, p. 7. 



1895. „ „ De St. Joseph. Ann. Sc. Nat., 7 e ser., torn, xx, p. 185. 



1900. Syllis (Haplosyllis) djiboutiensis, Gravier. Nouv. Arch. Mus., 4 e ser. ii, p. 147, pi. ix, f. 3 (?). 



1905. „ spongicola, Willey. Eep. Pearl Fish. Ceylon, IV, p. 269. 

 9i „ „ Graeffe. Arbeit. Zool. Stat. Triest, xv, p. 323. 



1906. „ (Haplosyllis) hamata, De St. Joseph. Ann. Sc. Nat., 9 e ser., t. hi, p. 178. 



