486 



FUNAFUTI ATOLL. 



So conspicuous a shell is readily observed ; Pilsbry quotes 

 Pacific records embracing most archipelagoes between Queensland 

 and Hawaii. 



HYDATINA PHYSIS, Linne. 

 Pilsbry, loc. tit., p. 387, pi. xlv., figs. 14, 15, 16, 17. 



Mr. G. Sweet found a young shell of this world wide species. 



RlNGICULA PARVULA, sp. nOV. 



(Fig. 48). 



Shell very small, broad, solid, milk-white 

 and glossy. Whorls rounded, chanelled 

 at the suture ; incised by half a dozen sharp 

 narrow grooves at and below the periphery. 

 The mouth armature consists of a large 

 blunt tooth in the middle of the outer lip, 

 an elevated and much compressed one on 

 the body whorl and two others, distant, 

 rounded and oblique on the columella. 

 Length 1-6, breadth 1 mm. 



Differs in dentition and contour from 

 R. mariei, Morelet, and R. acuta v. minuta, 

 H. Adams, and in its minute size from all 

 others of the genus. 



One specimen from the lagoon beach. 



ELYSIA NIGROPUNCTATA, Pease, var. SANGUINEA, var. nov. 



(Fig. 49). 



This variety differs from the type figured 

 by Pease or Bergh* by being smaller by 

 one third, and having the tentacles and 

 mantle border coloured a vivid crimson. 



' 48 ' 



Fig. 49. 



One specimen was collected at low water on the extreme outer 

 edge of the windward reef. 



Perhaps E. marginatus, Pease, is but another colour variety of 

 the same species. 



PLECOTREMA BELLUM, H. & A. Adams. 

 Sykes, Proc. Malac. Soc., i., 1895, p. 242. 



In reference to this species, Souverbie pathetically remarks 

 that the wretched work of the Adams permits of no precise 

 identification. Their baneful seed has here produced the usual 

 crop of synonomy. My determination of a shell, once collected on 



* Pease Am. Journ. Conch., vi., 1871, p. 304, pi. xxii., fig. 2 a,b,c, d.; 

 Bergh Journ. Mus. Godeffroy, i., 1873, p. 80, pi. ix., fig. 7. 



