124 Addis on E. Verrill, 



Key to the Bermuda genera of Hippolytida and the Ogyrida. 



A. Rostrum not very short; carpus of second pair of legs with three 

 articles. 



B. No exopodite on first pair of legs. 



C. Rostrum strong, flat, toothed on both edges ; third, maxilliped acute, 

 leg-like Hippolyte. 



CC. Rostrum long acute, rounded above, without teeth ; multidentate 

 below ; a pair of dorsal spines behind the eyes. Antennules very large. 

 Third maxilliped short, flat, obtuse, without an exopod ; tip with 

 marginal spines Tozcuma. 



BB. An exopodite on first pair of legs; rostrum cultriform; toothed at 

 end ; a median dorsal spine on carapace ; third maxilliped leg-like ; 

 acute Latrcutes. 



AA. Rostrum very short ; carpus with more than three articles. 



D. Carpus of second pair of legs s-jointed; eye-stalks not very long, 

 uropods not excurved. Third maxilliped not 5-jointed Thor. 



DD. Carpus of second pair of legs 3 to 4-jointed, with additional imper- 

 fect annulations. Eye-stalks long and slender. Uropods excurved; 

 third maxilliped long, slender, 5-jointed. PI. 47, fig. 6 Ogyris. 



Hippolyte Leach, 1813. Type, H. varians. 



Hippolyte Leach, Edinb. Encyclop., viii, p. 432, 1814 ; Trans. Linn. Soc. 

 London, ix, p. 346, 1815. M. -Edwards and most later writers, in part. 



Virbius Stimpson, Proc. Acad. Nat. Sci. Phila., xii, p. 35, 104, 1860 (not 



Verbeus, as spelled by Bate). Smith, these Trans., v, p. 63, 1879. 



Kingsley, N. Amer. Caridea, Bull. Essex Inst, x, p. 63, 1878; Science, 



1899, p. 717. 

 Hippolyte (restr.) Bate, Voy. Chall., Zool., xxiv, p. 587. Holmes, 



Synopsis Calif. Stalk-eyed Crustacea, Occasional Papers Calif. Acad. 



Science, vii, 1900, p. 192. 



Carapace is carinate. Rostrum is compressed ; toothed above 

 and below. Mandibles are destitute of a palpus. Antennulae are 

 biflagellate; first joint is excavated above. Carpus of second pair 

 of legs is 3-jointed; legs slender. 



Antenna), scale is well developed and has a spine on the outer 

 margin. Legs of first pair are shorter and stouter than the others : 

 its carpus is excavated distally to receive the proximal end of the 

 chela. Legs of second pair slender, longer than preceding. Other 

 legs are successively shorter; their dactyls are spinulose beneath. 

 Third segment of the abdomen is prominent and somewhat gibbous 

 dorsally ; abdomen is not carinated nor spinulose. 



