•887.] MOLLUSKS OF THE VITI ISLANDS. ] 79 



3. PaTULA PRINCEt. 



Helix princei, Liardet, Proc. Zool. Soc. 18/6, p 100 d1 5 

 figs. 4, 4a. I ' i- • ' 



This species was found at Taviuni by Mr. Liardet. 



"Shell very small, depressed, with a wide and perspective um- 

 bilicus; colour dark brown; whorls 3, prominently costulated • 

 suture deeply impressed ; aperture round." {Liardet.) 



4. Patula irregularis, sp, nov. 



Pitys irregularis, Mousson, Mus, Godeff. 188.5. 



Shell small, umbilicated, orbicular, depressed, thin, translucent 

 greyish white under a bluish horn-coloured epidermis; sculpture 

 consisting of crowded, waved, raised striie, with larger ones irrec^ulirly 

 intermixed; spire convex, apex flattened; suture canaliculate; 

 whorls 4, convex, slowly and regularly increasing, slightly turgid 

 next the suture, last one rounded, slightly depressed above the 

 periphery; base convex; umbilicus deep, about one fourth the 

 major diameter of the shell ; aperture slightly oblique, irregularly 

 rounded ; peristome thin. ^ i o } 



Major diam. 3, height 2 millim. 



Common at Viti Levu. I received a number of specimens of 

 this species from the Museum Godeffroy, Hamburg. 



A small uucoloured species closely aUied to P. rudis, a Cook's 

 Island species. The irregular striae will separate it from the other 

 Vitian species. 



Genus Pitys, Beck. 

 1. Pitys subd^dalea. 



Patula {Endodonta) mhdcedalea, Mousson, Jouru. de Conch 1870 

 p. 117, pi. 7. fig. 6. ' 



Helix subdadalea, Pfeiffer, Mun. Hel. vii. p. 258 ; {Patula) 

 Paetel, Cat. Conch, p. 95. i » v / 



Pound by Dr. Graffe in Mango Island. Like all the South-Sea 



species. It IS found beneath decaying leaves and under rotten wood 



It is a little larger than Patula adposita, and of a pale horn- 



^"^1 "T 1^ ""'^^ umbilicus, planulate spire, the stri^ costulate, 



and 52 whorls. The parietal region is garnished with three spiral 



laminse, and there are four on the palate. 



Genus Placostylus, Beck. 

 I. Placostylus malleatus. 



BuUmus malleatus, Jay, Revue Zool. 1842, p. 80; Gueiin Mag 

 Zool. 1843, p. 61 ; Philippi, Abbild. ii. 9. p. 10, Bui. pi. 3. fig 4 ' 

 Pfeiffer, Mon. Hel. ii. p. 55 ; {Charis) id. Vers, p. 1 52 ; Reeve, Conch! 

 Icon pi 29. fig. 174; Deshayes, in Fer. p. 47, pi. 144. figs. 11, 12; 

 Gould, Expl. Exp., Shells, p. 81, fig. 78; {Charis) Albers, Die Hel 

 Isted. p. 152, 2nd, ed. p. 196; {Charis) H. & A. Adams, Gen. 

 Moll. li. p. 147 ; {Charis) Chenu, xMon. Condi, i. p. 436, fig. 3201 • 



