276 PARTULA, NEW HEBRIDES. 



The single Fijian Partula has 'been found only on the small 

 islands of the "eastern group," the genus being unknown on 

 the large islands, where Placostylus 'abounds. The rarity of 

 Partula in this archipelago is at present inexplicable. The 

 single species is one of the most distinct of the genus. 



Mr. Layard stated in a letter to Dr. Hartman that he did 

 not find the species on Taviuni or Lomma-lomma, in six 

 weeks collecting on the former and a day or two at the latter 

 place. 



Section MELANESICA n. sect. 



Sterope HARTMAN, Catal. genus Partula, 1881, p. 14, type 

 P. carteriensis Q. et G. ; not of Groodsir 1845, or Hagen, 1850. 



Partulae of simple form and coloring, corneous, yellow or 

 brown, uniform or obliquely streaked, not banded; aperture 

 not obstructed by teeth; the peristome either thin or thick- 

 ened within. Suture often bordered above by a thread, which 

 continues indistinctly on the last whorl as a low welt or 

 group of closer striae. Type P. turneri. 



This group includes all of the species of the New Hebrides, 

 Solomon Is., New Ireland, New Britain, New Guinea, and 

 other adjacent islands, as well as one Samoan form, 

 P. brazieri. 



VI. NEW HEBRIDES AND SANTA CRUZ ISLANDS. 



The Santa Cruz group, Banks and Torres Islands and New 

 Hebrides form a group trending from N. W. to S. E. through 

 about 10 degrees of latitude. The southern islands, Ero- 

 manga, Aneiteum, are not remote from the Loyalty Islands 

 which lie on a parallel fold, and have no Partulae. The 

 northern or Santa Cruz end of the group approaches the 

 Solomon Islands. The fauna is only imperfectly known, but 

 seems to be somewhat related to that of the Solomon Islands, 

 though much poorer and more primitive by lacking Papuina, 

 Chloritis, etc. M'any of the islands are high and wooded. 



Group of P. turneri. 

 Ovate-conic or pyramidal, openly 'and deeply rimate-umbili- 



