THE CRUSTACEA OF NEW JERSEY. 93 



basal knob or process. These branches both of similar structure 

 to those in radiating- series of head. Abdomen small, rather short, 

 robust and a little pointed. Egg-strings long, filamentous, of 

 equal calibre and about as long as rest of body. Color with head 

 and anterior constricted thoracic region very pale or pellucid. 

 Distended thoracic region deep maroon-red, and long egg-strings 

 pale. Total length about 83 mm. 



Male. — Unknown. 



Remarks. — I first discovered this species on an alewife, Pomo- 

 lobiis pseudoharengus obtained in the open Delaware River and 

 brought into the fishery of my friends, Messrs. R. and H. H. 

 Burton, at Tullytown, in Bucks County, Pennsylvania. This 

 specimen was captured on May 28th, 1912. About several hun- 

 dred alewives were examined, but no more parasites were found 

 in any of them, and they are not noticed by the fishermen. The 

 method the latter emplov of scaling the fish, by dumping them 

 in a compartment and throwing sand over them, then several 

 men in rubber boots tramping them about, of course, renders it 

 impossible to examine fish for any of the protruding lerneans. 

 I had the opportunity of examining the above example before 

 it was so treated, and thus secured it intact. 



On July ist, 1912, ]\Ir. W. B. Davis and the writer secured 

 several examples from the mummichog {Fundulns heteroclitus 

 niacrolepidotus) along the shores of Great Bay in Ocean County. 



Two other hosts may be mentioned, as I secured it on the 

 silversides {Menidia mcnidia notata) and the may fish (Fimdulus 

 inajalis) at Assateague, in Virginia, on May 5th, 1912. It was 

 not abundant, however, and only several specimens were obtained 

 from several hundred fishes. 



Type No. 2002, Academy of Natural Sciences of Philadelphia. 

 Tullytown, Pennsylvania. From Poinolobus pseudoharengus 

 (Wilson). May 28th. 1912. H. W. Fowler. Others, para- 

 types, Nos. 2003 and 2004, same collection, are mentioned in the 

 above remarks. 



(Septus, seven; ramus, branch; with reference to the append- 

 ages of the head and neck.) 



