18*^7.] MOLtUSKS OF THE VITI ISLANDS. 313 



p. 25, 1873, p. 107 (var. rotundata); Pease, Proc. Zool. Soc. 18/1, 

 p. 476 ; Paetel, Cat. Conch, p. 125 {musica in err.). 



This variable species is abundant beneath decaying vegetation in 

 the lowlands near the sea-shore, and is generally diffused throughout 

 the group. It is also common in similar stations in the Tonga and 

 Samoa Islands. Prof. Mousson's var. rotundata was obtained at 

 the low coral-islands of the Ellis group. 



The shape varies from depressed globose to sublenticular, and in 

 size it varies from 3 to 5 millim. in diameter. The usual colour is 

 white, corneous, or pale yellowish horn-colour, with radiating reddisli- 

 chestnut, more or less zigzagged or undulating stripes ; it is rarely 

 unicolor, and sometimes ligiht chestnut. The periphery is rounded 

 or subangulated, and the peristome slightly expanded. 



H. oceanica. Pease, inhabiting the Kingsniill group, is probably 

 a variety of H. musiva. 



9. Helicina articulata, Pfeiffer. 



HeHcina articulata, Pfeiffer, Proc. Zool. Soc. 1854, p. 53 ; Mon. 

 Pneum. ii. p. 191 ; Malak. Blat. 1854, p. 103. 



A few examples found beneath decaying leaves near the sea-shore, 

 on the west end of Vaniia Levu. 



Pfeiffer mentions "Tanna, New Hebrides," as the habitat of 

 H. articulata. 



Very closely related to the depressed subangulated forms of 

 H. musiva, and the colour and markings are nearly or quite similar 

 in the two species. The two articulated white and chestnut bands 

 at the suture and periphery are not constant. The filocarinated 

 body-whorl is its most prominent character. Diam. 5-6 millim. 



10. Helicina pohliana, sp. nov. 



Helicina miniata, "Lesson" (not of Lesson in Voy. ('oquille). 

 Museum Godeffroy, 1885. 



Shell solid, depressedly-conoid, smooth, shining, fulvous or luteous, 

 with very faint oblique striae and distant irregular microscopicfil 

 impressed spiral lines ; spire convexly conoid ; whorls 5, flatly 

 convex, last one obtusely carinate ; keel white, compressed beneath ; 

 aperture small, diagonal, semioval ; peristome very thick, labiate 

 within ; basal callus white or pale yellowish. 



Viti Levu. 



I received this species from the Museum Grodeffroy, labelled 

 " H. miniata. Lesson." Lesson's species is peculiar to the island of 

 Bolabola, one of the Society group. 



Its solid texture, yellow colour, obtuse white keel, and thick 

 obtuse peristome will readily distinguish it from any other Viti 

 species. 



11. Helicina iNcisA, Mousson. 



Helicina incisa, Mousson, MS., Museum Godeffroy, 1 885. 



Shell minute, depressed-conoid, very faintly striated by lines of 



