128 SCUTELLINA. 



For characters see above. This is a small group of shells very 

 like Acmcea in appearance, but having the apex back of the center, 

 as usual in limpet-like rhipidoglossa, and having the lingual denti- 

 tion distinctly rhipidoglossate in character. The following list of 

 species must be regarded as provisional, as the soft parts of most 

 of them are unknown. 



S. CRENULATA Broderip. PL 46, fig. 6. 



Shell subconical, concellated, with sharp radiating stride ; white ; 

 shining inside ; marginal ring and margin crenulated. Length i|, 

 width I, alt. i inch. This shell was found dead on coral sand on 

 the beach of the island at a distance from any fresh- water. The 

 marginal ring is very strongly developed, and the margin itself is not 

 even ; for when the shell is placed with the aperture downwards on 

 a flat surface, it rests on the two ends, the sides of the margin 

 forming a low r arch. (Brod.) 



Chain Island, S. Pacific. 



Scutella crenulata BROD., Proc. Zool. Soc. 1834, p. 48. 



S. CINNAMOMEA Gould. PL 46, figs. 8, 9, 10, 11. 



Shell small, thin, oval, convexly arched, of an intense cinnamon- 

 color within and without. The apex is acute, projecting even beyond 

 the anterior margin and nearly touching it, so that the apex is far 

 below the most elevated point of the shell, which is nearly central. 

 Surface covered with minute very numerous radiating strise, which 

 are rough with crowded points that are very slightly vaulted. The 

 aperture is an elongated oval, the margin minutely crenulated, and 

 at the anterior portion broadly excurved and strengthened within 

 by a white marginal rib, causing the interior to resemble a Navicella. 

 (Old.) Length , breadth f, alt. 9 o inch. 



New South Wales. 



Patella cinnamomea GLD., Proc. Bost. Soc. N. H. ii, p. 151, 

 1846 ; Exped. Sh., p. 9 ; U. S. Expl. Exped., p. 345, f. 449, a, b. 

 ANGAS, Proc. Zool. Soc. Lond. 1871, p. 97. 



According to Mr. Angas, the S.ferruginea of Adams is synony- 

 mous. 

 S. PULCHELLA Lischke. PL 46, figs. 4, 5. 



Shell small, thin, more or less equally arched, elliptical, inequi- 

 lateral, yellowish, cancellated with very close radiating unequal 

 riblets and dense subundulating interrupted concentric lirulse ; riblets 

 sculptured with very fine erect scales ; apex curved, obtuse, ter- 

 minal. Length 8J, width 53, alt. 4 mill. 



