EXOTIC CONCIIOLOGY. 33 



This is so very distinct, a shell from the true Millepeda, that it is surprising Rniguierc 

 should have continued the error of placing it as the same species: his figure, however, is very- 

 good. The claws are very short and dilated, and the spire always lengthened. Mr. Dubois ha.s 

 the finest example of this rare shell I have ever seen. 



PTEROCERA MILLEPEDA. MANY-CLAWED SCORPION. 



P. Testae labio exteriore processibus 9 falcatis, leviter compressis, amiato ; spira brevi ; 



■• apertura striata. 



Outer lip with nine curved, slightly compressed processes ; spire short, aperture striated. 



Lister, 8C9. 23. Martini, .3. tab. 88 f. 861 & 2. Seba, 3. tab. 82. 



Foutiff, Martiui, 3. tab. 93. 906 & 7. 



Although not uncommon in a young state, this shell is rarely seen well grown, nor have I 

 ever heard of a specimen in full perfection. The figures and specific characters will so easily 

 point out the dissimilarity between this and the last, that no further reasons for separating them 

 appear necessary. It may however be observed, that the lip in this is always reflected, and in 

 P. Elongata inflected. 



o" 



PTEROCERA VIOLACEA. WHITE PURPLE MOUTHED SCORPION. 



P. Testse labio exteriore processibus 10 brevibus, compressis, (2 superioribus divaricatis) 

 armato ; canfJi brevi ; apertura labiisque albis, costatis, intus purpureis. 



Outer lip with ten short compressed processes ; the two upper divaricated ; channel short ; 

 aperture and lips white, ribbed, and within purple. 



Martini, vol. 10. tab. 157, pi. 1494 & 5. 



The most delicate, and one of the rarest species. Excepting the throat, which is of a 

 beautiful purple violet, the mouth is pure white, marked by regular and delicate ribs, larger 

 and more distant on the inner lip, which is faintly tinged with purple ; the margin is a little 

 reflected ; the claws flattened, and the two upper ones much divaricated ; the back is white. 

 Beautiful specimens were collected by Lord Valentia (now Earl of Mountnorris) in the Red .Sea; 

 and to this nobleman we are indebted for the knowledge of a vast number of new shells collected 

 during his Oriental travels. 



