THE CRUSTACEA OF NEW JERSEY. 91 



ovaries straw-colored. Length 130 mm., measured from end of 

 head to tip of abdomen. 



Remarks. — Known from our coast only on the record given 

 by Leidy in 1890. His examples were taken during the same 

 summer, hanging in great clusters from the root of the dorsal 

 and other fins on the Mola mola, captured at Beach Haven. His 

 specimens varied from 124 to 176 mm. in length, and the neck 

 was buried in the flesh of their host from 32 to 76 mm. Many 

 were also parasitized with the barnacle Conclwderma virgata and 

 the hydroid Eucope parasitica. 



I have two examples, also taken from a Mola mola, and 

 obtained by Captain John L. Howard. Though labeled "Port 

 Richmond, Philadelphia," they w^ere possibly secured from a 

 host captured somewhere off the coast. One example shows a 

 large barnacle, Conchodernia virgata, attached to the lower sur- 

 face of the abdomen. 



De Kay's Penella plumosa appears to be this species. It is 

 described as having a body capable of great contraction and 

 dilatation. The enlarged head has numerous foramina at its 

 end, and there is a rudiment of a third elongated process on the 

 nape. The caudal extremity has a series of processes on each 

 side, eighteen to twenty in number, and appear bulbous under a 

 lens. In color all the free portion of the animal is dark red or 

 purple. Its length is two to three inches. De Kay gives two 

 hosts, which he apparently credits to his work on the fishes- of 

 New York, but neither occur there under the name Rhombus 

 ferrugineus and Diodon plumosus. The former of these is likely 

 his Platessa ferruginea {= Limanda ferruginea) and the latter 

 his Diodon fuliginosns (^ Chilojiiyctents schccpfi). 



Pennella sagitta (Linnaeus). 

 Plate 23. 



Pennatula sagitta Linnaeus, Syst. Nat., Ed. lo, 1758, p. 819. "/« Pclago" (on 



Lophius his'trio). 

 Pennella sagitta De Kay, N. Y. Fauna, III, 1842, p. 333. Lower bay within 



Sandy Hook, New Jersey (on Mola mola). 



