°. 
252 CLASS III. GASTEROPODA. ORDER VII. PECTINIBRANCHIATA. 
base, and of the plaits the lowest are always the smallest ; the outer lip 
is somewhat thickened, and slightly denticulated. 
Examples. 
Pl. CCLXXIX. Fig. 1. 
Mirra eEpriscopatis, D’Argenville, Conch., pl. 9. f.c. Lamarck, Anim. 
sans vert., vol. vil. p. 299. 
Mitra Episcopi, Rumphius. Martini. 
Buccinum engystomum, Regenfuss. 
Pl. CCLXXIX. Fig. 2. 
Mirra CARDINALIS, Gronovius, Zoophyl. Fasc., vol. ili. no. 1326 and 
1327. Lamarck, Anim. sans vert., vol. vii. p. 301. 
Pileus cardinalitius, Seba. Martini. 
Voluta cardinalis, Gmelin. 
Voluta pertusa ? Linneus. 
Mitra pertusa, Sowerby. 
Pl. CCLXXX. Fig. 3. 
Mirra apusta, Lamarck, Anim. sans vert., vol. vil. p. 303. Martini, 
Conch., vol. iv. pl. 147. f. 1361. 
Tiara adusta, Martini. 
Voluta pertusa, Gmelin. 
Pl. CCLXXX. Fig. 4. 
Mirra REGINA, Swainson. Chemnitz, Conch., vol. x. pl.151. f. 1444 and 
1445. Kiener, Iconographie des Coquilles vivantes, pl. 19. f. a. 
Pl. CCLXXX. Fig. 5. 
Mirra FissurATA, Lamarck, Anim. sans vert., vol. vii. p. 311. Ency- 
clopédie Méthodique, pl. 371. f. 1. a, 6. 
Pl. CCLXXX. Fig. 6. 
Mirra oxivaria (?), Lamarck, Anim. sans vert., vol. vii. p. 305. 
