MUSEUM OF COMPARATIVE ZOOLOGY. 453 



the capsule at all stages show usually a mammillary tip. The largest larva 

 obtained, though it had just begun to make part of the shell showing color- 

 pattern, was still without cephalic tentacles, eyes, or siphonal appendages. It 

 had no trace of an operculum or epipodium. The shell showed two plaits on 

 the columella. The confirmation of the existence of the suspected protoconch 

 is particularly gratifying. The larval characters emphasize the differences 

 between Voluta proper and Scaphella, and leave no doubt of the propriety of 

 their generic separation. The turbinate shelly peculiarly sculptured larval 

 shell of Valuta is entirely different from anything we find in Scaphella. 



Vermicularia lumbricalis Linn^ (p. 261). For those who doubt this 

 being the original V. lumbricalis of Lamarck, the " Vermet " of Adanson, it 

 may be noted that the American form has been named V. spiratus by Philippi 

 (1836), and V. radicula by Stimpson (1851), while the Adansonian shell, on 

 the ground that it is not the Serpula lumbricalis of Linne, has received the 

 name of Adansonii from Hanley. 



Nudibranchiata. Dr. Bergh, who is preparing a special report on this 

 group from the material collected by the Blake, informs me that seven species 

 are represented, as follows : — 



Tethrjs leporina Linne (var.). 

 Chromodoris sycilla Bergh. 

 Ckromodoris punctiluccns Bergh. 

 Chromodoris scabriuscula Bergh. 

 Nembrotha gratiosa Bergh. 

 Phlegmodoris f anceps Bergh. 

 Phyllidiopsis papilligera Bergh. 



The interesting features of these animals are left for Dr. Bergh to describe ; 

 the list is here included only to complete the number of Gastropods in the 

 Blake collection. 



