46 Moll 
MOLLUSOA. 
Lachesis meridionalis, sp. n., E. A. Smith, 1. c. p. 28, pi. iv. fig. 3, 
Straits of Magellan, 20 fath. 
Taranis bella (Verrill) perhaps a variety of mcerchi (Malm) ; Dali, Bull. 
Mas. 0. Z. ix. p. 70, Caribbean Sea. 
Taranis pulchella, sp. n., Verrill, P. U, S. Nat. Mas. iii. p. 368 [1880], 
N.E. Coast of America, 487 fath. 
CANCELLARIID.aE. 
Cancellaria (Lam.). Kobelt begins a monograph of this genus in 
Kiister’s Conchylien Cabinet, pt. 309, 16 pp. 5 pis., describing 11 and 
figuring 19 species. He rejects Adam’s subgenera, and subdivides the 
genus simply as Trigonostomes [sic !], Purpuriformes, and Mitriformes. 
Camcellaria wilmeri, sp. n., Sowerby, P. Z. S. 1881, p. 637, pi. Iv. fig. 2, 
Port Blair, Andaman Islands. 
Cerithiopsidjj. 
Cerithiopsis sigsbeana and ? crystallina, spp. nn., Dali, Bull. Mus. C. Z. 
ix. pp. 87-89, Caribbean Sea, 100-805 fath. 
Isseliella^ new name for Isselia (Semper, pre-occupied), embryonal 
shell sinistral, and may, therefore, be placed near Cerithiopsis ; I. mirabilis 
(Dunker), Upolu, abnormis (Nevill, Rissoina)^ Indian Seas, and concinna 
(Sow., Rissoina) = pseudo-concinna (Nevill) ; Weinkauff, gen. Rissoina in 
Kiister’s Conch. Cab. pt. 312, pp. 60 & 67, pi. xv. fig. 9, & pi. xv.a, fig. 5. 
Lepetella, g. n., Verrill, Am. J. Sci. (3) xx. [1880] p. 396, and P. U. S. 
Nat. Mus. iii. p. 375 ; forZ. iubicola, sp. n., Verrill & Smith, IL cc.', inside 
old tubes of Hyalincecia, N.E. Coast of America, to 365 fath. 
Cerithiopsis costulatus^ Whiteaves, nec Moller, renamed Lovenella 
whiteavesi ; Verrill, IL cc. 
CASSIDIDiE. 
Dentition; Tryon, Manual of Conchology, iii. pi. ii. 
27 species of Tritonium, 15 Epidromus, 2 Distorsio, 19 Ranella, from 
Mauritius, with synonymy, enumerated by Tapparone-Canefri, Faun, 
mal. Maur., pp. 21-56. 
Triton (Montf.). 5 subgenera, 105 species described and most of them 
figured ; Tryon, 1. c., pp. 6-34 & 225, pis. i.-xvi. & Ixxxv. 
Triton philomelce^ sp. n., Watson, J, L. S. xv. p. 268, Nightingale 
Island, Tristan d’Acunha. 
Tritonium pachycheylos \^chilus\ (Tapp.-Can., 1876), Mauritius ; Tappa- 
rone-Canefri, 1. c. p. 30, pi. ii. figs. iii. & iv. N«ar T. clavator (Chemn..) 
Distorsio (Bolten), 3 species; Tryon, 1. c. p. 35, pi. xvii. 
Priene magellanica (Chemn.) = Triton cancellatum (Lam.), W. coast 
of Patagonia, the same species said to be also in the Arctic part of the 
Pacific ; E. A. Smith, P. Z. S. 1881, p. 31. Operculum described. 
Ranella. 3 subgenera, 31 species described and part of them figured ; 
Tryon, 1. c. pp. 36-45, pi. xviii.-xx. Jousseaume, Bull. Soc. Z. Fr. 1881, 
pp. 172-176, proposes to split this Lamarckian genus into several, as 
follows : Ranella^ type R. crumena (Lam.) ; Bufonaria (Schumacher), 
