WORMS. TESTACEA. 63. Spondylus. - | gas 
65. SPONDYLUS. Animal a Tethys: fhelt 
hard, folid, with unequal valves; one of 
the waives convex, the other rather flat: 
hinge with 2 recurved éeeth fepar: ated by 
a finall hollow. 
Gadaropuse Shell flightly eared and fpinous. 
Lifter conch. tab. 206—209. Barbut, tab. 5. fig, 1 
Adanf. Seneg. +. tab. 14. fig. 6, 7. 
Bonan. reer. and Muf. Kirch. 2. fig. 20—22, 
Rumpf. Muf. tab. 47. E. tab. 48. I. 
Petiv. Amb. aq. fab, 20, f. 6. 
Guali, tefl. tab. 99, F. tab, vor, A, B, 
Argenv. conch, tab. 20, B, E. 
Argen. Zoom, tab. 12. f. A. 
Klein ofir. tab. 8, f-23- t. 9, J. 37. 
Seba Muf. 3. t. 88. f. 13—1 1. t. 89, f. 1—7. 
Regenf. conch. tab, 4. f. 48. 
Knorr Delic. tab. B, iv. f. 1. 
Knorr lergn. Y. tab. 7. f. 1, 5. f. 9, f. 1. 
Murray teft. tab. 2. f. 14. 
Born. Muf. Cef. Vind. tefl. 76. «vtgn- 
Chemn. conch. 7. tab. 44. fr 450-462. Fa f. 453::470. tab. 
46. f. 472. t. 47. f.474--478. 
Inhabits Mediterranean, Indian and other feas, and is found in 
infinite varieties as to fize, thicknefs and colours; fometimes 
entirely purple, orange, white or bloom-colour, fometimes 
marked with various ftreaks, fpots, dots or bands. 
Regius, Shell without ears and iin 
Argenville conch. tab. 20, fig. G 
Chemn. conch. 7, tab. 46, fig. 471. 
e. Enorr Vergn. $. 140,16; fir. 2: 
3- Knorr Vergn, 5. tab.13, fig. 1 
4, Arsenville conch. tab, 20, fg. L? M? 
Inhabits India, 3) near Ma/ta: very rare. 
Shell fübglobular, within white, without purplifh, fcarlet, flame- 
colour, orange or white: fies generally 2 inches long, fome- 
times cylindrical, with a crenate margin. 
Plicatus, Shell without ears or fpines, plaited. 
Adanf. Seneg. tab. 14, fig. 2. 
Lifter conch. tab. 210, fig. 44. tab. 1059, f. 3. 
Gualt, tef. tab. 99, . tab. 104, F? 
Schret. litterat. 1. tab. 1, fig. 7. 
hz Chem, 
