Mr. Gray's Monograph on the Cj/prceidce. 493 



2 Incompleta. Testa ovato-oblonga, albida, obscure trifasciata ; 

 spira plana, ; subtus sulcata. 



3. Decorticuta. Testa caerulea, marginibus albis. 



Icon. Martini}, t. 31. f. 339. 



Inhabits Mediterranean, Atlantic, Ethiopic, and Indian Seas. 

 Gmelin. Mus. Brit. Nost. 



Shell ovate, white, or whitish yellow ; the back ovate, sur- 

 rounded by a yellow ring close to the edge of the margin ; spire 

 flat, covered ; the margin thickened and extended, but rounded 

 at the edges, and produced at the upper part into four tubercles, 

 which are nearly as high as the centre of the back, giving the shell 

 the appearance of a trussed fowl, which it is often called ; the base 

 white, flattish, with seven or eight tubercles on the side of the 

 mouth ; mouth rather wide ; teeth rather large, and close, nearly 

 equal on both lips ; columella flat, even ; inside white, with 

 three purple bands. Axis ~, diameter ^ of an inch. 



When this common shell is young, it is oblong-ovate, with a 

 flat spire ; white, with three obscure purplish bands, and the base 

 is flat, and the teeth are extended rib-like over the lips. 



It is distinguished from the next two by the tubercles en the 

 margin and base. 



61. Cyprcea obvelata. — The Thick-Cloathed Cowry. 



Testa ovata sub depressa, dorso carulescente, linea flava circum- 

 dato ; marginibus incrassatis, albido-cinereis, laevissimis, tumidis, 

 dorso elevatioribus ; subtus convexiusculis subsulcatis. 



Cypraea obvelata. Lamarck. Ann. Mus. xvi. 102. ! Hist. vii. 

 401. 



Cypra;a moneta. Var. Dillwyn R. S. 459. 



Icon. Martini j. t. 24. f. 239, 240 ? Zool. Journ. t. 



2. Incompleta. Testa dorso caerulescente, marginibus palli- 

 da carneis, incrassatis, depressis. 



/S. Vitellus. Testa lutea polita, marginibus sub-depressis. . 



Inhabits Sea of New Holland. Lamarck. Mus. J. Sovverby. 

 2. Mus. Dom. M. A. M auger. /3. Mus. Dom. Mazce. 



Shell ovate, rather depressed ; the back blueish white, lanceo- 

 late, surrounded by a rather broad, yellow line, placed close to tne 



Vol. I. 2 l 



