MOLLUSCA. 
201 
Guppy, R. J. Lechmere. Descriptions of new species of fluviatile 
and terrestrial operculate Mollusca from Trinidad. Ann. 
& Mag. Nat. Hist. 1864, xiv. pp. 243-248. 
Martens, E. von. Ein neuer Cyclotus. Mai. Blatt. p. 113. 
(From Costa Rica.) 
Dunker, W. Ein neuer Bulimus. Mai. Blatt. p. 156. (From 
Peru.) 
12. North America. 
Morse, E. S. Observations on the terrestrial Pulmonifera of 
Maine, including a catalogue of all the species of terrestrial 
and fluviatile Mollusca known to inhabit the State. Port- 
land, 1864. 8vo, pp. 63. 
We have not seen this work, but only a single sheet entitled 
Synopsis of the fluviatile and terrestrial Mollusca of the State 
of Maine ; we have been informed that the work has since been 
published with the title given above. The paper is one of great 
interest on account of the systematic arrangement, which appears 
to have been founded on new observations of the teeth and jaws 
of the American species. 
Pfeiffer, L. Zwei neue Landschnecken von Bermuda. Mai. 
Blatt. p. 1. 
Lea, J. Observations on the genus Unio. Vol. x. 
Tryon, G. W. Synopsis of the species of Goniohasis and Belli- 
zostoma. Proc. Acad. Nat. Sc. Philad. 1864, pp. 24 & 92. 
b. Marine Mollusca. 
1. Europe. 
Waller, E. On a new British species of Rissoa. Ann. & 
Mag. Nat. Hist. 1864, xiv. pp. 136-138. 
Tasle. Catalogue des Mollusques observes dans le departe- 
ment du Morbihan. Vannes, 1864, 8vo, pp. 24 ; from Bull. 
Polymath, du Morbihan. 
A list of 227 marine species, some of which are inadmissible 
as decidedly exotic ; 8 species of Mangelia, 4 of Scalaria. 
Fischer, P. Diagnose d^une nouvelle espece ^ Odostomia des 
cotes de France. Journ. Coneb. 1864, p. 70. 
MacAndrew, R. Species of Mollusca obtained in Corunna 
Bay. Ann. & Mag. Nat. Hist. 1864, xiv. pp. 232-234. 
A list of 152 species, of which 19 only are not British ; those 
