170 
ZOOLOGICAL LITERATURE. 
lial* forms of Helix in the island of Haiti belong to the subgenera Plagio-- 
ptycha (iZ loxodofi), Purycratera {H. do7ninicensis) ^ Cepolis (JT. cepa)^ and 
Oaracolus (-ET. caracolld). Liguus (Achatina fasciatd) and Strophiu (the large 
species of Pupa) are common to Cuba and Haiti, but absent in Jamaica. 
The Bubprovince of Porto Rico has closer relations to Haiti than to Jamaica 
or Cuba j there are no strictly North -American forms ; Caracolus and Stro- 
phia are represented j the only West-Indian species of Clausilia ( Cl. tridens) 
inhabits Porto Rico. The characteristic form of the islands from Guada- 
loupe to Martinique and Barbadoes is the subgenus Dentellaria, several 
species of which are common to this subprovince and to the continent 
(French Guyana) — for example Helix oi'hicidata^ Isabella, dentiens, mix 
denticulata, hadia. St. Vincent is well marked by the genus Stenopus. In 
the Porto Rico subprovince more subgenera of PuUmtdus are represented 
than in Cuba, Haiti, or Jamaica; and in the Guadaloupe subprovince there 
are added some South- American subgenera of the restricted genus Bulimus, 
viz. Pelecychilus (B. aims sileni and aui'is sciuri), Borus (B. oblongus), and 
Eurytus{B. aulacostylus) , — Bulimus oblongus and am'is sileni inhabiting also the 
continent (French Guyana). 
Pfeiffer, L. Zur MoUuskenfauna von Cuba. Mai. Blatt. xiii. 
pp. 54-64. 
Some remarks concerning Arango's catalogue of Cuban land- 
shells (see Eecord for 1865, p. 228), and original descriptions 
of some new varieties and species collected in Cuba by Dr. 
Gundlach. 
. Bescbreibung neuer Landschnecken. [Description of 
new land-snails.] Mai. Blatt. xiii. pp. 76-91. 
Thirty-nine species from New Granada, Mexico, and several 
West-Indian Islands. 
. Beschreibung einiger neuer Landschnecken von Cuba. 
L. c. pp. 138-141. 
Tryon, G. W., Jun. On the terrestrial Mollusca of the Guano 
island of Navassa. Am. Journ. Conch, ii. pp. 304, 305. 
This very small island is between Haiti and Jamaica, about 
fifty miles west of the former : three species have been there 
collected by Mr. E. Gaussoin, all new, one belonging to the 
genus Chondropoma, which is common to Cuba and Haiti, but 
absent in Jamaica, one Helix related to a Cuban group. 
Guppy, R. J. Lechmere. Catalogue of the Land and Fresh- 
water Mollusca of Trinidad. Proceedings of the Scientific 
Association of Trinidad, First Part, Dec. 1866. Port of 
Spain, 8vo, pp. 10-35. 
The Mollusks of this island were scarcely known to Mr. Bland 
when he published the papers mentioned above. Mr. Guppy 
enumerates 24 land- shells, including a slug ( Veronicella) ,ovi\.y five 
of which are operculated, not one being a true Helix, Only BulU 
mulus and Stenogyra are represented by more than two species. 
Eight freshwater and 3 submarine species. A preliminary ac^ 
