102 l-< IIN(>( HI I 



Chiton tcj'titi.-* WMr. Sown.. Condi. Illustr. i'. 01, according to 

 Reeve. Chiton retimlntu* Rv., Conch. Icon. j,l. ]."">, fig. 83 (1847). 

 hchnochiton reticulahis CIM:.. .!/>'. 



Reeve states that this is the textilis of Sowerhy hut not of Gray, 

 and lie i- probably right, although his own identification of text ilia 

 ( iray is erroneous. Carpenter gives these notes upon Reeve's ty pi- 

 specimen : One specimen, which is over-colored and over-drawn in 

 Reeve's illustration. It looks to me like a line textitin, as Sowerby 

 seems to have taken that species, but I have no /<.// ///* by me for 

 comparison. It is very light brown, with little black irregular dots 

 which appear to be adventitious. Girdle typically Isclmoid, with 

 moderate-sized striated imbricating scales. Fine radiating ribs on 

 the lateral anas, very numerous on the terminal valves; honey- 

 combed in the middle ; jugum very much rounded. Anterior valve 

 with 14, central valve 1, posterior valve 12 slits; teeth sharp; sinus 

 very broad and flat, not toothed. Length 303, breadth 16 mill. 

 (Cpr.) 



Compare textili* Gray, from which this differs in coloration and 

 apparently in sculpture. 



3. Group of I. ri**oL 



Small species having longitudinal riblets upon the central areas, 

 and continuing backward over the lateral areas. These are closely 

 allied to the group of /. striolatH*. 



Distribution : Mediterranean, African and West Indian. 



I. KISSOI Payraudeau. PI. 20, figs. 1-7. 



Sln-11 oblong, elevated, the back regularly arched or snbcarinated, 

 side slopes convex. Surface longitudinally 1 irate on the intermedi- 

 ate, concentrically on the end valves. Color pale brown-olive, the 

 lateral areas and end valves more or less maculated with snow-white 

 and In-own. 



The lateral areas are moderately raised and sculptured with 

 coar.-e. Hat, uneven-edged longitudinal riblets, which are separated 

 by narrow punctate intervals and are frequently irregular; under 

 a higher power of the microscope the surface appears to be min- 

 utely punctate, the dots whitish. The central area> have cle. line 

 riblets in the same direction, somewhat finer on the dorsal ridge, 

 and giving way to a minute punctation in the region of the beak of 



