PLATE XXXIV. 



shell dissimilar from that of Dr. Leach, he omits to mention, as well 

 as the former, that very conspicuous character of the species, the 

 deep longitudinal hollow down the middle of the upper valve, and 

 the dorsal elevation of the lower one* Lamarck, indeed, confesses 

 that the individual which he had under his eyes, and consequently 

 that which he describes, is not sufficiently perfect to authorize him 

 in determining the analogy between that shell and the Anomia 

 Capensis of Gmelin, which Chemnitz has figured ; a circumstance 

 that may explain the cause of this omission in the specific character 

 of Terebratula sanguinea. Yet we should have thought a shell 

 sufficiently entire to have enabled this ingenious Naturalist to have 

 composed his character of the species, would have been so far perfect 

 as to have justified some conclusion upon its analogy with the 

 Gmelinian Anomia Capensis. We may confidently add that these 

 two shells are totally distinct species, and are even generically different 

 if we enter very scrupulously upon their distinctive characters. 

 Dr. Solander had described this latter shell before the time of Gmelin 

 under the name of Anomia Cruenta. 



The representations of this choice testaceous production, which 

 accompanies our present description, will, it is presumed, convey a 

 more correct idea of the shell than can be expressed by words. The 

 Leverian specimen from which, as before observed, these figures are 

 taken, reahzed at the public hammer at the Leverian sale the sum of 

 five guineas,* and it still remains so rare that there would probably 

 be little, if any, dimunition in the price were it again to be disposed 

 of in the same manner at the present period. The shells of this kind 

 vary in some small degree in the intensity of colour from a very deep 

 sanguineous red to a paler hue. 



* Last Day's Sale, lot 74, £5 5s. 



