640 THE VOYAGE OF H.M.S. CHALLENGER. 



Habitat, — Luzon in the Philippines (Adams) ; Claremont Isles, lat. 13° 48' S., long. 

 143° 40' E., and Andaman Islands (British Museum) ; the Indian Ocean, from South 

 Africa and the Red Sea to Australia (v. Martens) ; Torres Straits, 11 fathoms (Brazier). 



V. Martens (loc. cit.), says this seems to be the Bulla (Haminea) succisa, Deshayes, p. 54, Moll. 

 Reunion = Atys succisa, Sowerby's Thes. Conch., p. 586, sp. 85, pi. cxxv. fig. 116, which is not 

 Ehrenberg's species. 



2. Atys debilis, Pease. 



Atys debilis, Pease, New Sandwich Islands Moll, Proc. Zool. Soc. Lond., 1860, p. 20, No. 7. 

 „ „ Reeve, Conch. Icon., vol. xvii. pL v. fig. 28. 



July 29, 1874. Levuka, Fiji. 12 fathoms. 



Habitat. — Sandwich Islands (Pease). 



Dr Carpenter (Proc. Zool. Soc. Lond., 1865, p. 516) says that this species "appears to be 

 identical with Atys succisa (Ehrenb.), and simply a slender variety of Atys alicula, A. Adams ; but 

 around the whole group there is confusion, which I have not present opportunity to clear up, and I 

 therefore retain Mr Pease's name as published, and as excellently figured by Reeve, and represented 

 in the British Museum. 



3. Atys par allela (V), Gould. 



Atys parallela, Gould, Proc. Boston Soc. Nat. Hist., 1847, December, vol. iii. p. 251. 

 „ Gould, United States Exploring Exped., p. 220, pi. xv. fig. 267. 



July 29, 1874. Levuka, Fiji. 12 fathoms. 



Habitat.—" Unknown " (Gould). 



I have marked this species with a query, for the only specimen by which it is represented is 

 chipped and rubbed, and it seemed to me not perfectly to agree in form with the British Museum 

 specimen, being somewhat longer, and toward the apex more tumid ; but it corresponds so well with 

 both the figure and description of Gould, that I have ventured to put it under his species'. 



4. Atys hyalina, 1 Watson (PI. XL VIII. fig. l). 



Atys hyalina, "Watson, Prelim. Report, pt. 20, Journ. Linn. Soc. Lond., vol xvii. p. 341. 



July 29, 1874. Levuka, Fiji. 12 fathoms. 



Station 186. September 8, 1874. Lat. 10° 30' S., long. 142° 18' E. Wednesday 

 Island, Cape York, North Australia. 8 fathoms. Coral mud. 



Station 187. September 9, 1874. Lat. 10° 36' S., long. 141° 55' E. Near Cape 

 York, North Australia. 6 fathoms. Coral mud. 



1 Not Bulla hyalina, Gmelin. 



