330 REPORT OF NEW JERSEY STATE MUSEUM. 



Dorsum of carapace and rostrum ecarinate. Antennulae bi- 

 flagellate. Antennal scale present. Mandibles without palp. 

 External maxillipeds short, with exopodite. Perseopoda without 

 epipodites. Carpus of first pair of perasopoda excavate in front. 

 Carpus of second pair triarticulate. Species rather few. 



Virbius pleuracanthus Stimpson. 

 Plate 95. 



I'irbius pleuracanthus Stimpson, Amer. Journ. Sci. Art., (2) XXIX, i860, 

 p. 444. Beaufort, North Carolina (name only). 



— — Stimpson, Ann. Lye. Nat. Hist. N. Y., X, 1871, p. 127. Somer's Point, 

 New Jersey, (Norfolk, Va.). 



— S. I. Smith, Rep. U. S. F. Com., 1871-72 (1873), p. 550 (on Stimp- 

 son). 



Kingsley, Bull. Essex Inst., X, 1878, p. 63. New Jersey and Virginia. 



Kingsley, Proc. Acad. Nat. Sci. Phila., 1878, p. 329. New Jersey to 



North Carolina. 



Kingsley, Amer. Nat., XXXIII, 1899, P- 7i8. Cape Cod to North Caro- 



lina region. 

 i'irbius zostericola S. I. Smith, Rep. U. S. F. Com., I, 1871-72 (1873), p. 550, 



PI- 3) fig- II- Vineyard Sound. 

 Paulmier, 58th Rep. N. Y. State Mus., VI, 1904, p. 132, fig. 5. Jamaica 



Bay, Long Island, N. Y. 



Description. — Back depressed. Rostrum horizontally broad, 

 smooth at base, acute, about half long as carapace, scarcely 

 more than half length of acicle of antennas, but reaches penult- 

 imate joint of peduncle of antennulse, and armed with one or two 

 teeth above and one below near end. A small spine on each 

 side at base of rostrum, above and a little behind base of ocular 

 peduncles. On front edge of carapace spine below each eye, 

 but no pterygostomian spine. Sharp hepatic spine on surface 

 of carapace behind base of antennae. Scales of antennse very 

 large, long as carapace, and rather widening than narrowing 

 toward their extremities. Dactyli of posterior three pairs of 

 feet broad, compressed, knife-like, with inner edges nearly 

 straight, and armed with minute spines. Dorsal angle of abdo- 

 men at third segment very prominent, but not acute. Length 

 about one inch. (Stimpson.) 



