WORMS. TESTACEA. 84. Patella. 



577 



Shell entire, oval, convex, ftriate, with a fubmarginal re- 

 flected mucronate crown. 

 RumpJ. MuJ. tab. 40. T. Mart, conch. 1. /. 17./. 154, 1 5 5. 

 Inhabits India: fize of a melon feed. 

 Shell fulvous : crown furrounded with a reddifh ring. 



Crown revolu'te: back crefled, car inate. 



Inhabits S/W/comprefted, fragile, diaphanous, with nume- 

 rous tranfverfe grooves, and a very thin double membrane on 

 the back irregularly cut; border fmuate : aperture with an 

 acute dorfal, angle. 



*Lacustn'i\ Shell vety entire, oval,' membranaceous, with a nearly 

 central mucronate reflected (hell. 

 Argen'v. conch, tab. 27. jig. \ t Zoom. t. S. f. I. 

 Ginan. op. poft, 2, tab. 2. Jig. 11. Geojfr. test. I. 

 Martini Berl. Magaz. 4. tab. 7. fig. 2, 3. 

 Inhabits frefti waters of Europe : if — -z\ lines long. 





the interior angle. 

 *Flu-viati- Shell very entire, oval, a little horny, with a marginal 



Tgtnet 



H 





mucronate crown : aperture oval. 

 Lister, tab. 14.1. Jig. 39. Ani?n< Ang. t. 2*f, 32. 

 Gualt, test. tab. 4. A A. B B. Arg. conch. 1. r. 27./, 1. 

 Martini Berl. Magaz. 4, tab. 7. Jig. I, 

 Schr cet . fiujconch . tab. 5. Jig. I — 3. 



Inhabits rivers of Europe : i\ lines long : refembles the laft. 

 Shell brittle, pellucid, with only a few concentric ftriae : point of ^J $ jMj \ 

 the crown rather obtufe, $* J -J I 



Shell entire with elevated dots and flriate: crown acute* ;■ -Nc v 1 /v; 

 ftraight. 

 Mull. Zool. Dan. I. tab. 12. fig. 1 — 3, 

 Inhabits bays of Norway, on {tones. 



Sbe/l white, with 60—80 ftrise : inhabitant white, ovate, without 

 the leaft appearance of eyes, 



Shell very entire, white with red bands. 

 Mull. Zool. Dan. I, tab. \Z. Jig. 4, 5. 

 Inhabits bays of Norway, on Fuci. 



Js 



* Ss 



Shell minute, with about 18 bands and very minute concentric; ) f )~ 

 itrise, within yellowim ; inhabitant white, with a very broad 

 <:heirut £ap or membrane and black eyes, 



VOL. IV. — 4 D Tefi/ata, 



ft k ),s? 



t' 



