108 Hon. W. Rothschild on Seven new Species of 



cated, with figures of the permanent as well as the larval 

 shell *. The latter resembles the species procured at St. An- 

 drews (Plate VIII. figs. 5 & 6), but differs from it in the size of 

 the serrations on the ridges (fig. 7), those in the Messina 

 specimen being much more minute. 



The adult Lamellariae are not uncommon under stones be- 

 tween tide-marks, especially in rock-pools, and it might have 

 been expected that the larval forms would have been sooner 

 procured in the tow-nets. The more systematic use of the 

 special bottom-net in recent years, however, seems to have 

 been much more successful in this respect than either the 

 surface or mid-water nets. 



EXPLANATION OF PLATE VIIL 



Fig. 1. Clymene ebiensis, a little larger than natural size and viewed from 



the side. 

 Fig 2. View of the dorsal surface of the cephalic segment. Enlarged 



under a lens. 

 Fig. 3. Ventral surface of the same region, showing the eyes and mouth. 



Similarly enlarged. 

 Fig. 4. Anal cone and funnel of the same species with the adjoining 



segments. Enlarged uuder a lens. 

 Fig. 5. Atlanta-like like larva of Lamellaria in lateral view. The fine 



serrations of the edge are distinct. Maguiiied from life. 

 Fig. 6. View of the edge of the shell of the foregoing, so as to exhibit the 



double angle. 

 Hg, 7. Portion of the double angle, more highly magnified. 



XI. — Descriptions of Seven new Species of Birds from the 

 Sandxoich Islands. By the Hon. Walter Rothschild. 



Some specimens of birds belonging apparently to new genera 

 and species have been forwarded to me by my collector, 

 Mr. Palmer, and are of sufKcient interest, I think, to be 

 brought before the notice of naturalists. 



Family Anseridae. 

 Bernicla Munroii, sp. n. 



Adidt, Head and neck black, excepting a large patch 

 which extends on the upper throat over the lower part of the 



* A summary of the pelagic larval forms allied to tlie above is given 

 in Bronn's ' Klassen u, Ordnungen ' (Malacozoa), p. 1005, &c. 



