288 BIBLIOGRAPHY. 



Contribution a la Faune Malacologique de Nossi-be et 



de Nossi-comba (Contribution to the Conchological Fauna of 

 Nossi-be and Nossi-comba). — By H. Crosse, Journ. de Conch., 

 July, 1 88 1. 



The two islands Nossi-be and Nossi-comba are situated off 

 the west coast of Madagascar, and in this paper M. Crosse gives 

 a resume of the information gathered by several Naturalists who 

 have visited the islands. Forty-two species are enumerated, of 

 which Ennea metula Crosse (pi. v., f. 3), collected at Nossi-comba 

 by M. Marie, is described as new. A new var. of Helix otnpha- 

 lodes — Loncoubeensis Crosse — is described, found by M. Marie in 

 the Forest of Locoube, Nossi-be. The var. Hellvillensis of 

 Neritma Souverbiana is also described as new from Nossi-be. 

 This species has a very extended range, having been recorded 

 from New Caledonia and Port Jackson, Australia. 



This interesting pamphlet is accompanied by a plate, con- 

 taining figures of 6 of the more interesting species. 



Dr. HartiMann of Westchester, Pennsylvania, is now 

 engaged upon a Bibliographical Catalogue of the genus Achati- 

 nellincB, a group whose species have been excessively multiplied 

 by various authors. The able manner in which the learned 

 Doctor has treated the genus Fartula, and his reduction of many 

 of the so called species to the rank of synonyms, is a good augury 

 of the reformation he will make in the group he has now in hand. 



J.C, iii., January, 1881 



