100 NEW INVERTEBRATA FROM 



Ag., but somewhat different from this species or any 

 Sarsia yet described. 



The bell of the oldest specimen observed has a pointed 

 apex with thick bell walls. The height of the bell is 

 greater than its diameter. The proboscis rarely projects 

 outside the bell opening, its length not being much greater 

 than that of the height of the bell cavity. 



The tentacles are long, filamentous, with scattered ne- 

 matocysts. The tentacular bulbs are large and promi- 

 nent and of a yellow color, each with a prominent black 

 ocellus. There are four narrow, unbranched, radial chym- 

 iferous tubes. 



In a younger specimen (fig. 2) the outer surface of the 

 bell is strewn with clusters of nematocysts. This imma- 

 ture form has but a slight apical prominence and the ten- 

 tacles are shorter and more stumpy than those of the adult. 

 This species was found in the Bay of Monterey, at San 

 Francisco and at Santa Barbara. 



SYNCORYNE ROSARIA A. Ag. 



(PLATE IV, FIGS. 1, 4.) 



This hydroid 1 was collected in great quantities on the 

 spiles of the wharf at Santa Barbara, where it occurs upon 

 the fronds of algae and the tunics of Tunicates ^ud other 

 animals. It forms small clusters consisting of hydroid 

 heads growing from branching basal tubes. Each tube, 



O O " 



bearing a single head, is unbranched. 



The head is white, or slightly pink in color, with five 

 terminal, club-shaped tentacles, forming a ring about a 

 central mouth-opening. The remaining tentacles of the 

 head are more scattered, and arranged with little regular- 



1 This is supposed to be the same as the Coryne of A. Agassiz, but as he does 

 not give a figure of C. rosaria I am not sure that they are identical. 



I have followed Allman in limiting the name Syncoryne to those Corynidae 

 with free hydroid Medusae. 



