132 NEW YORK STATE MUSEUM 



Family palaemonidae 

 Palaemonetes vulgaris (Say) 

 Prawn 



P a 1 a c m o n v u 1 g a r i s Say. /. c. 1818. p. 248. DeKay. /. c. 1844. 

 p.29, pi. 9, fig.30. 



P a 1 a e m onetes v u 1 g a r i s Verrill. /. c. 1874. p. 550. pi. 2, fig.9. 



Characterized by the presence of a straight, thin rostrum, as long 

 as the carapace, and with eight or nine teeth above and four below. 

 Antennulae trirlagellate, longer branches two thirds the length of the 

 antennae, which are slightly longer than the body. Second pair of 

 feet larger than first and both chelate. 



Fig. 4 Palaemonetes vulgaris (After Verrill) 



Length 45 mm. Translucent and almost colorless, with irregular 

 spots of brown and black. 



Found in great numbers in the eelgrass or clinging to the Fucus 

 on piles and wharves. It appears to like brackish water and runs 

 up at times to where the water is entirely fresh. Important as a 

 food for fishes. 



Virbius zostericola Smith 



Virbius zostericola Smith. In Verrill. /. c. 1874. p. 550, pi. 3, 

 fig. 1 1 



Female, rostrum straight and as long as carapace, with two (rarely 

 three) teeth on upper edge and three (sometimes two or four) on 

 lower. Carapace smooth, armed with three spines on anterior part. 

 Inner flagellum of antennae extending slightly beyond tip of antennal 

 scale, outer flagellum much shorter. Abdomen geniculated at third 

 segment, the posterior margin of which is prominent but not 



