POLYPLAOOPHO1 in:i 



roded. ( Vntral arm <-<>vrml with minute n d-lil,. 



stria-. Mar-inal li-am- nt i:iih< r widr, \\liit. . 



alternate a-hen and oran-c ipofa Lengtfc !'. l>i..i.!lh M mill. 



(Kitchen-., in r.uil. Boc, Philom. 



/.</>iml I'nrhinn, <i'it-nl'loupe. Rare. Mus. Paris. 



GYMNOIM.AX >ri< i KKRUS Rochcbr. Shell el.m-itrd. cariotl 

 rose red striated with green lines. Posterior valve obtusely timbo- 

 nated. Anterior valve, posterior part of the poster 1 .and 



lateral areas of the intermediate valves clothed \\ith radiating beaded 

 ribs. Central areas sculptured with branchinir .-harp rad 

 Marginal ligament narrow, white, ornamented with elongated green 

 spots. Length 29, breadth 12 mill. (Rochebr.,in Bull ilom. 



Paris, 1883-'84, p. 36). 



Island Cochino* Guadeloupe. Rare. M 



ONITOCIIITON [sic] PRUINOSUM Roehebr. Shell elongated, 

 rotund ; whitish ornamented with green dots and red spots. Ante- 

 rior valve, posterior area of the posterior valve, and lateral areas 

 of the intermediate valves regularly and concentrically 

 central areas sculptured with most minute, interrupted, subdichoto- 

 mous stria?. Marginal ligament narrow, frosted. Lt-i 

 breadth 10 mill. (Roehebr., Bull. Soc. Philom. Paris, 1883-'84, p. 

 35). 



Island Cochino, Guadeloupe. Quite common. Mus. Paris. 



ONITHOCHITON MARGARITIFERUM Roehebr. Shell elliptical; 

 pale rufous, painted with red spots. Anterior valve, posterior part 

 of the posterior valve and lateral areas of the intern 

 ribbed, the ribs tuberculate. Central areas minutely striated, striae 

 clothed with acute denticles. Marginal Hiram 

 rufous. Length 10, breadth 5 mill. (Roehebr. in Bull. Soe. Philom. 

 1883-'84, p. 35). 



Island Cochino, Guadeloupe. I Ian . 



10. So-nth A Species. 



CHITON GLAUCOCINCTUS Frembly. PL 10, fi.ir. 1-. 



Shell oblong ovate, reddish, marked with alternate brown and 

 greenish blue stripes. Valves eight, the first and last radiated! 

 dorsal valves smooth, divided into two parts by a transverse ridge; 

 posterior compartment grooved. Border broad, granulate, pink, 



