460 THE VOYAGE OF H.M.S. CHALLENGER 



4. Crepidula immersa (Angas). 



Crypto, immersa, Angas, New Australian Shells, Proc. Zool. Soc. Lond., 1865, p. 57, pi. ii. fig. 12. 

 Crypto, (lanachus) immersa, Angas, South Australian Moll., Proc. Zool. Soc. Lond., 1865, p. 174, 



No. 118. 

 Crepidula porcellana, var., Sowerby, Thes. Conch., pts. 39, 40, p. 66, sp. 7, pi cccclii. (Fam. viii.) 



fig. 122. 



Station 162. April 2, 1874. Lat. 39° 10' 30" S., long. 146° 37' E. Off East Mon- 

 cceur Island, Bass Strait. 38 to 40 fathoms. Sand and shells. 



Habitat. — Port Lincoln, St Vincent's and Spencer Gulfs, South Australia (Angas). 



Two specimens of this species were got attached to the inside of the outer lip of a dead Voluta 

 undulata, Lam., inhabited by a Pagurus strigimanus. 



5. Crepidula onyx, Sowerby. 



Crepidula onyx, Sowerby, Genera, vol, i. pi. clii. fig. 2. 

 „ „ Keeve, Conch. Icon., vol. xi. pi. ii. fig. 9. 



„ Carpenter, MolL N.W. America, Brit. Assoc. Keport, 1856, p. 323, and (1863) p. 622, 

 No. 203. 

 „ „ Carpenter, Mazatlan Moll., p. 278, No. 340. 



Crypta porcellana, var., Gray, Proc. Zool. Soc. Lond., 1867, p. 738. 



Crepidula onyx, Sowerby, Thes. Conch., pts. 39, 40, p. 66, sp. 4, pi. cccclii. ccccliii. {Fam. viii., ix.) 

 fig. 112. 



October 15, 1873. Tristan da Cunha. Shore. 



Habitat. — Panama and Mazatlan (Carpenter). 



The solitary specimen of this species obtained by the Challenger is in the very worst possible 

 condition, and the identification is therefore somewhat doubtful. Carpenter (Mazatlan Mollusca, loc. 

 cit. supra) considers this species as probably the same as Crepidula hepatica, Krauss (Sudafrik. Moll, 

 p. 69, sp. 3, pi. iv. fig. 12), from the Cape, and (teste Dunker, Moll. Guinea, p. 34, No. 92, pi. v. 

 figs. 4, 5) from the coast of Guinea, an extension of the habitat, which tends to confirm my 

 identification above. 



4. Galyptrcea, Lamarck, 1799. 



Species. 

 1. Calyptrcea calyptreeformis (Lam.) 2. Calyptrcea pileus (Lam.) 



1. Calyptrosa calyptreeformis (Lamarck). 



Trochus calyptra>formis, Lamarck, Anim. s. vert., vol. vii. p. 12, and (ed. Desh.) vol. ix. p. 125, sp. 7, 



p. 162, sp. 9. 

 Calyptroza Lamarckii, Deshayes, Encycl. mdthod., vers, vol. ii. p. 170, sp. 2. 

 Crepidula tomentosa, Quoy and Gaimard, "Astrolabe," Zool., vol. iii. p. 419, pi. lxxii. figs. 1-5. 

 Calyptrcea Lamarcldi, Lamarck, Anim. s. vert. (ed. Desh.) vol. vii. p. 627, sp. 9. 



