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



5. Cyprcea microdon, Gray. 



Cyprcea microdon, Gray, Zool. Journ., vol. iv. p. 71, No. 11*. 



„ „ Lamarck, Aniin. s. vert. (ed. Desh.), vol. x. p. 564, No. 93. 



„ „ Kiener, Iconog., p. 102, sp. 92, pi. lvi. fig. 5. 



„ „ Deshayes, MolL Reunion, p. 138, No. 539. 



„ „ v. Martens, Moll. Mauritius, &e., p. 271. 



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



Habitat. — Pacific Ocean (Gray) ; Indian Ocean, Ceylon, Nicobars, Malay Archipelago 

 (v. Martens). 



I have identified this species by comparison with Gray's types in the British Museum. Sowerby 

 (sec Pfeiffer, Krit. Register zu Conch. Cab., p. 8, No. 263) has confounded the species (see Conch. 111., 

 figs. 3, 138). Eeeve, if one may judge by his figure and description (Conch. Icon., vol. hi. pi. xxiv. 

 fig. 139), has done so too; as also Weinkauff (Conch. Cab., p. 31, pi. ix. figs. 2, 3, 9, 10, pi. xiii. 

 figs. 5, 8), who unites it with Cyprcea jimbriata, Gm., from which it is certainly not remote, though 

 I believe it distinct. 



6. Cyprcea miliaris, Gmelin. 



Cyp-<xa miliaris, Gmelin, Syst. Nat., p. 3420, No. 106. 



Martini, Conch. Cab., vol. i. pp. 349, 393, pi. xxvi. fig. 260, pL xxx. fig. 323. 

 „ „ Lamarck, Anim. s. vert., vol. vii. p. 387, and (ed. Desh.) vol. x. p. 511, sp. 26. 



,, ,, Deshayes, Encycl. method., vers, vol. iii. p. 824, sp. 22. 



„ „ Brazier, "Chevert" Exped. Shells, Proc. Linn. Soc. New South Wales, 1877, vol. i. 



p. 297, No. 66. 

 ,, „ Dunker, Index Moll. Mar. Japon., p. 99. 



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

 Island, Cape York, Torres Strait. 8 fathoms. Coral mud. 



Habitat. — Darnley Island, Torres Strait, 20 to 30 fathoms, sand (Brazier) ; Japan 

 (Berne Museum, Collection Shuttlewortb) ; Moluccas, Philippines (British Museum). 



In classing the Challenger specimen as Gmelin's species, I mean simply that it agrees with shells 

 bearing Gmelin's name in the British Museum. My own opinion is that these are the same as others 

 marked Cyprcea lamarckii, Gray; and that both are distinct from Cyprcea erosa, Linne, of which 

 Dillwyn (vol. i. p. 461, No. 50) regards Gmelin's species as- the young; while Deshayes (Lam., Anim, 

 s. vert., 2d ed., vol. x. p. 511, note) simply unites them, followed herein by Gray (Zool. Journ., vol. i. 

 pp. 504-507), who, however, at the same time resuscitates the Cyprcea miliaris, Gm., in the form of 

 two new species, Cyprma lamarckii and Cyprcea listeri, of his own making, but one of which at 

 least, if they be good species, ought to have borne Gmelin's name of Cyprcea miliaris. I have not 

 the means of fully examining this whole question, which is further complicated by Kiener (p. 65, 

 pi. xxxiii. fig. 2, pi. xli. fig. 2, Cyprcea listeri, Gray ; and p. 5S, pi. xxx. fig. 2, Cyprcea miliaris, Gm. ; 



