528 
ZOOLOGICAL LITEKATUllE. 
(Say) ; Busy con aruanum (L.) ^Byrula careca (Lam.) = B. spinosum (Conrad), 
B. elicrans (Montf.), Eeeve, Pyrula, f‘. 16, Kiener, pi. 3. fig. 1, Chemnitz, 
figs. 744, 766, and 767 y B, candelahrum (Lam.), B, coarctatum (Sow.), and 
two reversed species — B, kionori (V]i\\.)=yibhosum (Conrad), and B.pcr- 
versum (L.). Am. Journ. Conch, iii. pp. 182-186. [The llecorder thinks 
that Mr. Conrad goes too far in distinguishing species } he does not give 
distinctive characters, and the original accounts of tlieso species support fully 
the results arrived at by Mr. Graham Ponton. At all events Mr. Conrad is 
wrong in assigning the specific name aruanum to the American shell called 
JPymla carica by Lamarck. The shell described by Eumph as Bucdnum 
aruanum is Lamarck’s Fusus prohoscidiferuSf which really comes from the 
Aru Islands near New Guinea.] 
Birula {Fdyur) carica (Lam.) and perversa (L.). Graham-Ponton shows 
that none of the differences between these two so-called species are constant 
but of rather individual character j therefore he regards them as varieties of 
one species, carica (Lam.), Ann. & Mag. Nat. Hist. July, 1867, xx. pp. 28-30. 
This view is opposed in the American Journal of Conchology, iii. p. 328, 
but without fresh evidence. 
NASSIDiE. 
Troschel follows Stimpson in establishing a distinct family, 
Nassacea, characterized by a radula the median plate of which 
is crescent-shaped, with numerous denticles on its posterior 
edge, the lateral plates provided with two strong teeth. This 
family comprises the genera Bullia, Pseudo stj'ombus, Neritultty 
Amycla, Arcularia, Nassa^ and Ilyanassa (Stimps.). 
Description and figure of the radula of B. rhodostoma (Gray), achatina 
(Lam.), annulata (Lam.), Ps. vittatus (L.), Ner. neritea (L.), AiJi. corniculum 
(Olivi), Arc. thersites (Brug.), in which tho inner edge of the inner tooth of 
the lateral plates is also denticulated, N. arcularia (L.), coronata (Brug.), 
scalariformis (Ohemn.), mutahilis (L.), siquijorensis (Ad.), margaritifera 
(Dunker), conoinna (Powis), lachiymosa (Beovc), tcenia (Gmel.), mitralis 
(Ad.), variahilis (Phil.), incrassata (MUll.), amhigua (Pult.), rciicxdata (L.), 
cancellata (Chemn., Morch, which is probably Lov^n’s reticulata), and gayi 
(Kien.). Troschel, 1. c. pp. 87-96, pi. 8. figs. 7-21. 
Nassa. The new genus Ptychosalpinx, Gill, Am. Journ. Conch, iii. p. 153, 
created for miocene Buccinums, with a revolving marginal linear plait in 
front, is reexamined by T. A. Conrad, ibid. pp. 261-264, who shows its close 
affinities with Nassa, especially N. trivittata (Say) and N. ohsoleta (Say), so 
that it is difficult to separate all these genera or subgenera by invariable 
characters.” Moreover Ilyanassa is stated to have the inner lip distinctly 
striate. 
Nassa nitida, sp. n., Jeffreys, noticed as a variety of Bucdnum reticulatum 
by Montagu, muddy estuaries of the Thames and Orwell ; the difference be- 
tween it and N. reticulata is not less than between N incrassata and N pyg- 
mcea (Lam.). [The Recorder thinks that both would be better regarded 
as varieties oi reticulata and inci'assata respectively.] Jeffr. Brit. Couch, iv. 
p. 349. 
Nassa semisulcata and N. coturnix, described by Dunker in 1853, figured 
now, Novitat. Conch, pi. 32. figs. 6, 6, 7 & 8. 
