SPECIFIC DESCRIPTION. 279 



rostrum, the three others being further apart, 

 the most anterior being subapical. 



The third segment of the pleon is dorsally pro- 

 duced posteriorly to a point. The eyes are small : 

 the superior antennas have the primary ramus of 

 the flagellum tolerably robust, and reaching to 

 about two-thirds the length of the rostrum ; the 

 secondary slender, and longer than the pri- 

 mary. The inferior antennas have the scale 

 reaching to about three-fourths the length of the 



o 



rostrum, rounded at the apex, subapically fur- 

 nished with a small tooth upon the external 

 margin : the flagellum wanting. 



First pair of pereiopoda short, robust, chelate ; 

 second pair long, slender, and chelate ; the pos- 

 terior terminating in a robust dactylos. 



Taken in Esquimalt Harbour. 



HYPPOLYTE BREVIROSTRIS (DANA). Esquimalt 

 Harbour. 



HYPPOLYTE LAYI (OWEN). Esquimalt Harbour, at 

 Monterey, by Captain Beechy. 



PANDALUS DAN^E (STIMPSON). Esquimalt Harbour. 

 GEBIA PUGETTENSIS (DANA). Esquimalt Harbour. 



CALLIANASSA LONGIMANA (STIMPSON). Puget's Sound 

 and Straits of Feuca. 



ALLORCHESTES VERTICELLATUS (DANA). Eight 

 fathoms water, in Esquimalt Harbour. 



Dana took it along the shore near Valparaiso. 



