with Descriptions of X, w Spt cu 8. 



Macroceramus Guilding, as Morch remarks («7bi r. I 



vii. 257, 1S67), belongs to his division Goniognatha, the jaw- 

 being composed, as in Orthalia a, of Oblique plates. The teeth 

 are arranged in the same manner as those of ( tylindrella. 



Pi'eiffer (Malak. Blatt. p. 233, lSt'.Ti, in liis review of the 

 classification in the Die Hdiceen, expresses hie belief that 

 Anoma and Lia belong rather to CylindreUa than Ma r<n ra> 

 mus, but remarks that the animal is unknown. 



During the last two years M.'Crossc has npeatrdly called 

 my attention to the importance of examining the animal of 

 some species of the group to which C. Maug\ ri belongs. Lately, 

 I obtained from my friend Nath. Wilson, the distinguished 

 Botanist of Jamaica, several specimens of 0. Blandiana 1'iV., 

 placed by Yon Martens in the subgenus Lia ><'■ M 



Although the animals were dead, I secure*! the lingual ribl B. 



I found no jaw, and seeing the character of the teeth, bolii 

 that none exists. 



From the accompanying figure (by Morse), it will bi 

 that in form and arrangement the ,. . 



teeth are decidedly of CyUndrella 

 type. The median tooth is long and 

 narrow, terminating in a single cusp. 

 The laterals are bicuspid; posterior 

 margin of the plates fringed ; anterior 

 cusp fringed, posterior cusp bluntly 

 notched. The formula 55-1-55 x 145. '■"*' 



This seems to establish the fact that 

 Lia. and I believe Anoma also, must be Be] 

 Maorowamus, and that, in accordance with the v'u 

 Pfeiffer and II. and A. Adam-, they 1..-' 



