CORBITELLA AND HETEROTELLA. 11 



Corbitella elegans (Marshall). 

 (Plate, figs. 13-15.) 



Eudictyon elegans. Marshall, '75, p. 211 ; PL xvr, figs. 



66 a-/.— Marshall, '76, p. 129. 

 Eudiclyum elegans. Schulze, '86, p. 43. — Schulze, '87, 



pp. 103-104. — Schulze, '00, pp. 164-165. 



The possibility of the little known Eudictyum elegans Mar- 

 shall being generically and even specifically identical with Cor- 

 bitella speclosa has been assumed by both Marshall and F. E. 

 Schulze. The result of my examination of Marshall's type, 

 preserved in the Museum of the Zoological Garden in Amster- 

 dam, tends to show that while the species should decidedly be 

 ranged under the same genns as C. speclosa, the extension of the 

 identity to the point of species is scarcely justifiable. At least 

 so long as the differences which I shall point out in the sequel 

 remain not bridged over by intermediate transitions, I consider 

 it expedient to keep up Marshall's species under the name of 

 Corbitella elegans. 



The locality of the single specimen on which the species is 

 based has never before been made known. On the label attached 

 to it, it stands thus : " Coll. van der Hucht. Molukken." The 

 specimen thus comes from the same islands as C. speciosa, a fact 

 which made me at first presume its identity with the species 

 just mentioned, as had been suggested by Marshall and Schulze. 

 As known through the original describer the two specimens here 

 alluded to closely resemble each other in general appearance and, 

 I may add, in spiculation too, except in certain points to which 

 attention will soon be called. 



