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



2. Rissoina cincta, Angas. 



Rissoina cincta, Angas, New Austral. Shells, Proc. Zool. Soc. Lond., 1867, p. 114, pi. xiii. fig. 22. 

 „ „ Reeve, Conch. Icon., vol. xx. pi. viii. fig. 71. 



"Weinkauff, Conch. Cab. (ed. Kuster), p. 87, sp. 117, pi. xv.d. fig. 11. 



April 17-18, 1874. Port Jackson, Sydney. 2 to 10 fathoms. 

 Habitat. — Port Jackson, deep water (Angas). 



3. Rissoina dubiosa (?) (C. B. Adams). 



Rissoa dubiosa, C. B. Adams, Contrib. to Conch., April 1850, vol. i., p. 114. 

 Rissoina dubiosa, Schwartz v. Mohrenstern, Monog. Rissoina, p. 67, sp. 33, pi. iv. fig. 31. 

 Weinkauff, Conch. Cab. (ed. Kuster), p. 27, sp. 30, pi. ix. figs. 4, 5. 



Station 122. September 10, 1873. Lat. 9° 5' S., long. 34° 50' W. Off Pernam- 

 buco. 350 fathoms. Red mud. 



Habitat— Jamaica (Adams) ; Cuba, Jamaica, St Thomas (Schwartz). 

 This is a somewhat stumpy and close-ribbed form, but belongs, I think, to this species. 



4. Rissoina miranda (A. Adams). 



Rissoa miranda, A. Adams, Ann. and Mag. Nat. Hist., 3d ser., 1861, vol. viii. p. 135. 

 Rissoina miranda, Weinkauff, Conch. Cab. (ed. Kuster), p. 69, pi. xv.a. fig. 8, pi. xv.d. fig. 3. 

 „ „ Dunker, Index Moll. Mar. Japon., p. 118. 



Station 188. September 10, 1874. Lat. 9° 59' S., loug. 139° 42' E. West of Cape 

 York, North-east Australia. 28 fathoms. Green mud. 



Habitat. — Japan. 



Weinkaufi 's quotation (loc. cit. supra) of this species from " Bourbon, Mauritius, Ceylon, Bombay, 

 Arakan, and Singapore," seems based on its identification with Rissoina insolita, Desh. (which in the 

 Conch. Cab. always appears as insolida), an identification which, however probable, is not accepted by 

 Weinkauff himself, who gives both species as distinct. Von Martens, who quotes the latter species 

 (Meeresfauna Mauritius, &c, p. 286) for Mauritius and Bourbon, makes no reference to Adams' species. 



5. Rissoina reticulata (?) (Sowerby). 



Rissoa reticulata, Sowerby, Genera of Shells, vol. ii. pi. 208, fig. 1. 



„ „ Reeve, Conch. Syst., p. 152. 



„ princeps, C. B. Adams, Contrib. to Conch., p. 116. 

 Rissoina reticulata, Schwartz v. Mohrenstern, Rissoina, p. 74, sp. 41, pi. v. fig. 40. 



„ princeps, Mb'rch, Mai. Blatter, 1876, p. 47. 

 Rissoa reticulata, Reeve, Conch. Icon., vol. xx. pi. viii. fig. 75. 

 Rissoina reticulata, Weinkauff, Conch. Cab. (ed. Kuster), p. 30, sp. 34, pi. x. fig. 2. 

 „ v. Martens, Meeresfauna Mauritius, &c, p. 285. 



