%0 



ith Descriptions of New Species. 9 



magna, obliqua, intus semicircularis ; lamellae obsoletae ; plicae 

 niiUae ; perist. continmim, undique late expansum. Long. 47, diam. 

 %\ mill. Localitas ignota. 



The species will, tlierefore, bear the name of Eucalodium 

 Taylori Pfr., with that of Cylindrella JSfeiocomhiana Gabb, in 

 the synonymy. 



Von Martens [Die Ileliceen^ 2 ed. p. 268, 1861)- places in 

 Pupacea the genus Macroceramiis^ dividing it into three sub- 

 genera, Macrocerainus of which M. signatus Guild., is the type, 

 and Anoma and Lia^ embracing species included by Pfeiffer 

 and H. and A. Adams in Cylindrella^ the type of the former 

 being C. tricolor Pfr., and of the latter C. Maugeri Wood. 



In 18G5 {Ann. Lye. viii. 162) I published tlie annexed figures 



Fig. 4. 



Buccal Plate of M. signatus, Lingual Dentition of Macroceramus 



Guild., Tortola. signatus, Guild. 



of the jaw and teeth of M. signatus^ which show that the genus 

 Macrocermnus Guilding, as Morcli remarks {Jour, de Conch. 

 vii. 257, 1867), belongs to his division Goniognathaj the jaw 

 being composed, as in Orthalicect^ of oblique plates* The teeth 

 are arranged in the same manner as those of Cylindrella, 



Pfeiffer {Malal. Blatt. p. 233, 1867), in his review of the 

 classification in the Die Hellceen, expresses his belief that 

 Anoma and Lia belong rather to Cylindrella than Macrocera- 

 mics, but remarks that the animal is unknown. 



* Albers {Die Helice^n^ 1 ed. 207, 1850) placed Leia in Cylindrella. 

 2 



