37.6" 



SHELLS AND SHELL-FISH. 



PART II. 



CoralUophaga Blainv. Transversely cylindrical ; the 

 bosses placed close to the anterior margin ; cardinal 

 teeth ^, one being bifid ; lateral teeth obsolete. A 

 doubtful type^ but connected to Cardita. 



C. carditoidea. Sow. Man. f. 92. 



Thracia Leach.* Shell transversely oval^ posterior side 

 truncate ; bosses central ; lateral hinge margin thick- 

 ened ; ligament external ; no teeth } ; affinities and 

 rank uncertain. 



T. corbuloidea. Sow. Man. f. 93. 



Galeomma Turton.^" Thin^ oval^ equilateral ; the ven- 

 tral margin considerably gaping ; cardinal teeth ^ ; 

 ligament internal and external. 



G. Turtoni. Sow. Gen. f 1 — 3. Maiiritiana. lb. f. 4, 5. 



Venerupes ij: Lam. Animal perforating, analogous to 

 that of the Solejis ; shell transverse ; the anterior side 



* I have not seen this shell ; the figure, but not the definition, being in 

 So\verl)y's Mnnual. Splnciiiii, 'J'urton, seetns to be an aberrant species of 

 Saxicava, with the thickened liinjie margin of Thracia. 



f Passes into Gastrochie/ia, luul thus completes the circle of this tribe. 



t Judiciously contracted from J't'nrn'riipfs. These perforating animals 

 have no connection whatever with Pullastra. See Poli, vol. ii. 



