42 Moll. 
MOLLUSCA. 
Nassidas. 
Nassa weyersi , sp. n., Craven, Ann. Soc. mal. Belg. xvii. p. 16, pi. ii. 
fig. 2, Landana, mouth of the Congo. 
Bullia fusca, sp. n., id. 1. c. p. 16, pi. ii. fig. 1, Landana. 
Olivid^i. 
W. Tryon subdivides this family into the subfamilies Olivince , Ancil- 
lariance , and Harpince ; the first comprising Olivella , Oliva , and the 
Tertiary Plochelcea (Gabb) ; the second, Ancillaria and the Eocene 
Alonoptygma ; the third, Harpa alone : Manual of Conchology, v. 
pp. 59-61. 
Oliva. Tryon describes and figures 54 species, with many varieties, 
distributing them in the following subgenera : — Oliva proper, Lampro- 
doma , Callianax , Agaronia, and Oliv ancillaria. L. c. pp. 78-91, pis. 
xviii.-xxxvi. 
Olivella (Swains.). 30 species described and figured ; id. 1. c. pp. 63-72, 
pis. xiv.-xvii. 
Ancillaria. 19 species described and figured, including as subgenera 
Anolacia (Gray) and Dipsaccus (Klein) ; id. 1. c. pp. 92-97, pis. 
xxxvii.-xxxix. 
Ancillaria australis (Sow.). Dentition; Hutton, Tr. N. Z. Inst. xv. 
p. 121, pi. xiii. fig. v. 
Tarcn, g. n. Central tooth small, rectangular, three-cusped , lateral 
teeth broad, curved, with seven cusps ; operculum ovate, subconcentric. 
Trophon dubius (Hutton), New Zealand. Id. 1. c. p. 119, pi. xiii. fig. e. 
Harpa. 9 species described and figured ; id. 1. c. pp. 97-99, pis. xl. 
& xli. 
FusiDj®. 
Pusionella. [See Pleurotomidce . ] 
Fusus. [See also Buccinidce.'] 
MlTRID m . 
Tryon continues to treat of the Mitridce in the 4th volume of his Manual 
of Conchology, pp. 128-200, pis. xxxi.-lviii., bringing up the number of 
described and figured species of the genus Mitra to 198 ; Thala , 12 ; 
Mitroidea , including Mauritia and Mutyca , 5 ; Dibaphus, 1 ; Turricula , 
including Pusia } 145 ; Cylindra , 8 ; and Imbricaria, 9 species. 
Mitra ( Alitromorpha ) floridana , sp. n., Dali, P. U. S. Nat. Mus. vi. 
p. 327, pi. x. fig. 12, Florida. 
Mitrolumma , g. n. Type, Mitra olivoides (Oantr.), = columbellaria 
(Scacchi) ; Bucquoy, Dautzenberg, & Dollfus, Moll. mar. du Roussillon, 
fasc. iii. p. 121, pi. xv. figs. 33-39. 
