324 REPORT OF NEW JERSEY STATE MUSEUM. 



pair slender, and second pair of preeminent size with undivided 

 carpus. Last three pairs of legs slender and of moderate length. 

 No exopodites to any of thoracic legs. Eggs small and numer- 

 ous. 



Species rather few. 



Genus PAL/EMONETES Heller. 



Palccmonetcs Heller, Zeitsch. Wissen. Zool., XIX, 1869, p. 157. Type Pal(E- 

 mon varians Leach^ monotypic. 



Palccnionopsis Stimpson, Ann. Lye. N. Hist. N. Y.. IX. November, 1871, p. 128. 

 Type Palccmon I'arians Leach, virtually, though not included or so desig- 

 nated. 



Antennulse triflagellate, and antenn?e and perjeopoda as in 

 Palcemon. Carapace with antennal and branchiostegal spines, 

 though hepatic spine wanting. Rostrum long, lamellate. Mandi- 

 bles without palp. 



Species few, living in salt or fresh water. 



Palaemonetes vulgaris (Say). 



Plate 94. 

 Prazvn. Common Shrimp. 



Palcemon vulgaris Say, Journ. Acad. Nat. Sci. Phila., I, pt. 2, 1818, p. 248. 



Bays and estuaries as far south as East Plorida. 

 —^ White, Cat. Crust. Brit. Mus., XXV, 1847, p. 77. North American 



coast (Say's material). 

 Palemon vulgaris De Kaiy, N. Y. Fauna, Crust., VI. 1844. p. 29, PI, fig. 30. 



Grassy bays of the Hudson River. 

 Palcrmonetes vulgaris Stimpson, Ann. Lye. N. Hist. N. Y., X, Nov., 1871, p. 



129. Massachusetts to S. C. 

 — Verril!, Rep. U. S. F. Com., I, 1871-72 (1873), p. 516 (in Opsanus 



tau), p. 520 (in Lophopsetta maculata), Great Egg Harbor, New Jersey. 

 S. I. Smith, Rep. U. S. F. Com., I, 1871-72 (1873), p. 550, PI. 2, fig. 



9. Massachusetts to South Carolina. 



' Stimpson says, "the genus Palccmonetes was described by me in manuscript 

 about twelve years ago under the name Palccnionopsis. but this name has 

 never been published, and I believe it to be identical with Palccmonetes of 

 Heller, recently described from a species found in the fresh-water lakes of 

 Southern Europe." 



