ACA N III' "III 



B \ i < \ . I *.' ' - v - 

 HI 01 A ( . MM LED, v-.\ ,|. r Utroi /"..I. ti 



I.\M., An. I, Vert., \ ii. p. -.17. IM: M 



fC/n'tnn //,//,>/// S. .\\ r... Co I. di. Illii-lr.. |,. 7, t 

 Tin- valves an- more 01 



adult specimens. Tin- f '//. //;/>/// of Sower;. 

 eholoi;ical Illustration*, but never de-crilxd, has In 

 nyniou- mi account of its locality; but a- Kran- 

 ont, the li-niv repiv-rnt- that sjin-i.-.- \\ith an additional pair "t'wrll 

 <lr\rl.)pcd t lifts In-hind the tail-valvr. It may prove but 



as tin- liirmv wa> drawn from a badly eroded example and in otb.-r 

 11 with ii'irnnti, ii may !> left here for the present. 

 .1. iH'ninlltihi* differs from this species in both colorini: and 

 sculpture, v. Martens reports garnoti from Mauritius and Reunion 

 OIo'Miis' Reise, p. 300.) 



A. I'ExiciLLATUs Deshaycs. PI. 4, fig. 84 ; pi. 8, figs. 29, 30. 



Shell elongated, moderately elevated, carinated, the side-slopes 

 nearly straight. Surface lusterless, varying from uniform cream- 

 white to heavily blotched and maculated with blackish. 



Median valves slightly beaked. Dorsal areas not elevated at the 

 edges, rather narrow, closely and finely longitudinally stri 

 Latero-pleural areas covered with rather coarse, flat or subconcave 

 scale-like granules, varying from drop-shaped to angularly oblong 

 in form, arranged in radiating rows, and less obviously in serie 

 parallel to the outer-anterior contours of the tegmeutum (fig. 81). 

 Posterior valve having the tegmeutum small, round, nmf egua 

 length and breadth, the mucro moderately elevated an : 

 margin. 



Interior white ; sinus broad and angular. Slits of side insert; 

 plates posterior and small. Posterior valve having a slight upward 

 wave behind, at each side of which there is a projection or angle ; 

 the plate straight or concave from this angle to the lateral angles. 

 Slits as usual. Girdle covered with short pile, having a rather 

 small bunch <>f white spicules. at each suture, four bunches around 

 the head valve, and a fringe of similar long glassy spicules at the 

 periphery. 



Length 22, breadth 1 1 mill. ; divergence 110. 



Derft : Mintiu* (V. Uobillard.) 



Chifi> /"i>i<'iH>tf> DIMI.. Moll. Reunion, p. 41. t. 6, f. 8-10(1863). 

 A'- -mthnrh,'- in r,eitraL r ' /ur Meeresfauna der 



