io8 LEWIS : 



there were found tio specimens similar to the preceding. The 

 majority of this second collection were undoubtedly Dolina 

 alata, a species found in the waters on the coast of Massachu- 

 setts, and northward to Maine and Labrador. In this species 

 the external lobes are greatly inflated, the lappets are much 

 larger, the circulatory chambers much deeper, the color of the 

 cilia more vivid than in Bolina vitrea. Altogether it is a far 

 more robust species. Of American Bolinas, another species 

 belongs to Behring's Straits and still another to the North 

 Pacific Ocean. 



Amongst these winged Bolinas there was one specimen 

 wholly different from any seen before. The lobes were not 

 inflated, but conical, and the lappets were very short, not 

 reaching beyond the level of the mouth, and of course wholly 

 useless in the catching of pre}'. The circulatory chambers in 

 this species were remarkably deep. This was probably a 

 member of the genus Eurainpliata, of the family Kiiraniphae- 

 idat\ a tropical representative of the sub-order Lobatae. 



Another morning a collection was made at the bayside 

 instead of the ocean beach, and there were brought in no 

 specimens of the sub-order Lobatae, but a number of Idya 

 roseola, belonging to the sub-order Beroidae . 



Idya roseola, which was named by Professor Agassi/, in 

 1858, in that year appeared in great numbers along the whole 

 coast of Massachusetts, tingeing the sea in patches with its 

 delicate roseate hue during the whole summer. They laid 

 their eggs, and the young hatched from them were seen by 

 Alexander x^gassiz from the beginning of August to the first 

 week in September. 



In his account of these he says : — 



"After the spawning season the parent Idyas grew paler 

 and paler, and the first storms of September broke them all to 

 pieces and nothing could be found afterward but broken 

 fragments." I remained at Longport until the close of Sep- 

 tember. These living Idyas were found on some of the later 

 days of m\- visit, and had escaped the falc whicli awailed 



