218 [WORMS. TESTACEA. 65. Mara. 
Striatula, Shell fmooth ciaphanous; the beaks fubftriate, with a 
Ímooth marginal impreffion before them furrounded 
by a rim. 
Gualt, teft. tab, 85. F. Knorr Vergne 6. tab, 34. fig. 3. 
Chemn. conc. 6. tab. 21, fig. 205, 206. 
Inhabits the Mediterranean and Coromandel Coafis: about 2 i 
inches long and 3 broad: white, fubtriangular, rather convex, 
a little gaping on the fore-margin. 
Striata. — Shell thick triangular, with ftrong thick crowded fmooth 
arched ftriz. 
Inhabits-—— Chema. conc. 6, tab. 220 fig. 222. 
Shel] white, glabrous within at the beaks. 
Rotundatae She} obtufely triangular, whitifh, with milk-white bands 
on the beaks; the margins each fide the beaks violet. 
Lifer. tab. 263. Schrat. Einl. Conch. 2. tab. 8. fig. 1. 
2. Lifter Conch. tab. 264. fig. 100? 
Inhabits the Mediterranean: 1 $ inch long and nearly 2 broad; 
the fore-part marked with very fine ftriz. ; 
Glabrata, Shell fmooth diaphanous flriate ; the beaks very fmooth, 
the margins each fide of them ftriate. 
Gualt tef. tab. 71. fig. A. 
Chemn conc. 6. tab. 22° fig. 216,217 
Inhabits the African and Indian Oceans: 1% inch long and 2 
broad; white, with very {mooth beaks ftriate on the border. 
Nitida: Shell fnowy glofly thick diaphanous fmooth: depreffions 
each fide the beaks ftriate, the anterior one marked 
with a ridge. E 
Schrat. Einl. Cone. 2. tab. 8. figs 2, 3. 
Inhabits refembles the laft, but the beaks are retroverted and 
diftant, and the fhell triangular. 
^ 
Cerallina, Shell fmooth fubdiaphanous, white with paler bands. 
Boran recr. 2. Sige $3. Muf. kirch, 2. fig- 52. 
Rondel tefi. Y. tab. 33. Gualt. test. tab. 71. B. 
Klein ostr. tab. 12. fig. 80. Planc. concb. t. 3. f. 4? 
Chemn conc, 6, tab. 22. fig. 218, 219. 
Ynhabits the Mediterranean and Guinea: 2 inches broad, t jong: 
triangular, with obtufe depreffions each fide the beaks. 
La&ea, —— Shell thin turgid pellucid white, the fore-part very finely 
ftriate with paler bands. 
Chemn, conc. 6. tab. 22. fig. 220. 
Inhabits 
