ijS 
WORMS. TESTACEA. 56. Mya. 
Inhabits Nicobar IJlands : valves on one fide convex, broad 
rounded at the margin, on the other more angular, narfO'” 
flat and gaping. 
Ausiraliu Shell ovate-compreiTed, dofed : hinge with 2 lateral teeth* 
Chemn. conch, 6. tab, 3. Jig. 19, 20. 
Inhabits JVe-w Zealand: dirty ochraceous. 
Gaditana. Shell rounded, flattifh, tranfverfely flriate ; ochraceou*' 
within white. 
Inhabits Ihoresof Cadez. Chemn, conch.' 6 , tabc i-Jig, 22* 
Corrugata. 
Shell rhombic, green ; the protuberant parts wrinklcd- 
Mull. Befch. Natuif. 4. p, 58. tab, Jig, 7 > 
Schrmt. Fhjconch. tab.cj. fig. 3 . 
Chemn. conch. 6. tab. o,- Jg- 22. a, b. 
Inhabits rivers of Coromandel, and when the outer Ikin or 
dermis is removed is clay colour; thin, pellucid, and roa 
with' wrinkled Ilri® from each part of the hinge; with’ 
painted with fine radiate ftrix ; 1 1—16 lines long. 
epi; 
rked 
Rugose:, Shell oval, wrinkled, outwardly greenifh, within marg®^'^ 
taceous: primary tooth of the hinge crenulate, with 
longitudinal lateral one, double in the other valve. 
Chemn, conch, to. p. 36^. tab. ijo. Jig. 1649. 
Inhabits rivers on the coalt of Coromandel, 
Nodosa, Shell oval, thin, greenifh ; the protuberant parts knotty* 
Inhabits . Chemn. conch. IQ, tab. \-]o. f. 1650. 
Noravegica, Shell ov.al, longitudinally and thickly ftriate : one 
rounded, the other truncate: protuberant parts h 
corticated. 
Inhabits . Chemn. conch. 10. tab, xjo, f. 1647,. 1648* 
Spuria, Shell rhombic, green; the protuberanbpart glabrous. 
Schrcct. Einl. conch. 2, . tab, •p, fig 5. jj 
Inhabits rivers of Tranquehar referables M. corrugata, but 
nearly twice as large. 
Glycemeris. Shell gaping at botli ends, very thick, laraellous, oblod^^ 
oval, with tranfverfe wrinkled Arise : primary tooth 
the hinge very thick. 
Lifter conch, 414, fig. 258. 
0 * 
