Quarterly Journal of Conchology. \\$ 



description by Mr. Angas) as synonymous with bitceniata, Cox- 

 Helix bitceniata, Cox, (1868), must be placed in the syn- 

 onymy of Helix Flin.iersi, A. Ad. & Ang., (P.Z.S 1863). 

 Helix Angasiana, Newcomb, must stand as Helix bougain- 

 villei, Pfr. 



Notes on certain Terrestrial Mollusks, with descrip- 

 tions of New Species. — By Thomas Bland. 



Reprinted from the Annals of the Lyceum of Nat. Hist., New- 

 York, vol. xi, February, 1874, pp. 72 — 87. 



This highly interesting paper, of which we give a full abstract 

 below, enumerates 28 species, giving under each very new and 

 valuable information on their synonymy, habitat, dentition, classi- 

 fication, &c. 



Five new species are described, viz.: — 



Zonites Lamingi, Bland. 



Zonites Steamsii, Bland. 



Helix ( Plagioptycha) Sargenti, Bland. 



Macroceramus Su'ifti, Bland. 



Macroceramus Klatteanus, Bland. 



Oleacina flexuosa, Pfr. An examination of the collection of the late 

 Robt. Swift, reveals the habitat of this species, which was pre- 

 viously unknown, to be Aux Cayes ; it is the only W. Indian 

 species, nearly allied to the large Mexican forms. 



Macrocydis euspira, Pfr. This Venezuelan species is placed by Von 

 Martens in Ammonoceras, a subgenus of Hyalina. Its lingual 

 membrane is that of Macrocydis, differing only from the North 

 American species in having all the teeth purely aculeate. The 

 central tooth is of the true Glandina type, differing in this res- 

 pect from the North American species of the genus. 



The smooth anterior surface and decided median projec- 

 tion to the cutting margin of the jaw, combined with the form 

 and arrangement of the teeth, and absence of true laterals, 

 warrants its place in Macrocydis. 



