MOLLUSC A. 
447 
GASTROPODA. 
J. HogGj in a paper on the lingual membrane of Mollusca, 
based on a large and valuable collection of these objects made 
by the late vS. P, Woodward, speaks of the importance of the 
subject; using numerous quotations from papers by Dr. J. E. 
Gray and others. The four plates accompanying the paper are 
well executed, and refer to 84 species, several of which have not 
been previously described by any author. In the descriptions 
there are some misunderstandings, which show that the author 
is not quite familiar with the subject. 
PECTIN IBRANCHIATA. 
Proboscidifera rhachiglossa. 
MuRICIDvE. 
Macdonald gives, as distinctive features of the lingual denti- 
tion of this family, strongly curved simple acuminate teeth in 
the pleuree (lateral teeth or plates) and the origins of the central 
teeth usually being in bold relief upon the basal plates. He figirres 
as examples the dentition of Mur ex teimisjnna, fig. 3, and that of 
Concholepas peruviana^ fig. 4, and enumerates the following 
genera as provided with a dentition of this description : — Murex^ 
Purpura, lopas, Trophon, Monoceros, Vitularia, Rapana, Muru 
cidea, Fusus (proboscidalis) , Hemifusus. Ann. & Mag. Nat. Hist, 
ii. p. 243, pi. 16. Dr. J. E. Gray objects to this being a cha- 
racter of the family, ibid. p. 386. It appears that this will lead 
to the union of the family Purpuridee with the Muricid(B. 
Murcx trunculus (L.). Lingual dentition by Hogg, Trans. Roy. Microscop. 
Soc. xvi. pi. 10. fig. 36. 
Murex hrandans (L.). Varieties without spines, WeinkaufF, Conch, d. 
Mittelm. ii. pp. 84, 86. — M. trunculus (L.), its variations ; falcatus (Brusina) 
is one of them, ibid. pp. 86-87. — M. edwardsi a variety without 
varices is niuc (Reeve as Purpura), ibid. p. 87. — M. gihhosus (Lam.) from 
Algeria, ibid. p. 92. — 31. erinaceus (L.), its varieties, including tarentimis 
(Lam.), cingidiferus (Lam.), decussatus (Brocchi), and bractcafus (Sandri), 
ibid. pp. 93-95. 
3Iurex troscheli, sp. n., Lischke, Mai. Bliitt. xv. p. 219, Nagasaki, near to 
31. aduncospinosus (Beck). 
3Turex garrettii, new name for exigum (Garrett), which is preoccupied. 
Pease, Am. Journ. Conch, iv. p. 103. 
Trophon antarcticus, sp. n., Philippi, Mai. Bliitt. xv. p. 225, Straits of 
Magellan. 
Fusus mconstans, sp. n., Lischke, Mall. Bliitt. xv. p. 218, Yeddo and Nan- 
gasaki ; allied to torulosus (Lam.). — F. unicarinatus, n., Philippi, ibid, 
p. 223, Straits of Magellan. 
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