EIPIAirATIOlf OP IHE PLATES. 679 



EOHINODERMS. 



PlAIE XLV. 



Fig. a, Neoplate ojpModes, x 2. 



h. Arm-joints of ditto, seen from above, x 4. 



c. The same, from the side, x 4. 



d. The same, from below, X 4. 

 «. Lower surface of disk, x 4. 



CRUSTACEA. 



PlATE XLVI. 



Pig. A. Aohceus lasvioculis, <J, x5. «, ^helipede, x5. 



B. Stilhognathus martensi, adult c? , X 2. b, buccal and anten- 

 nal regions, showing the form of the joints of the outer 

 maxillipede &o., X 3 ; 5', chelipede, x 2^. 



■i 

 Plate XLVII. 



Fig. A. Ewrynome stim^sonii, c? » X 4, a, chelipede, X 6, 



B. Entomonyx spinosus, X 3g. h, inferior view of antenual 

 region, showing the form of the basal antennal joint, 

 X4|; 6', postabdomen, X 4 ; 5", chelipede, x4. 



Plate XLVni. 



Pig. A. Prontal region of Xiphonectes vigilans, var. ohtusidentatus, 

 showing the form of the marginal teeth, x 5. 



B. Thdlamita qytadrilohata, adult (J . J, chelipede. 



C. Cardnoplaai Integra, $ , X 5. c, inferior view of frontal 



and antennal region, showing the form of the peduncular 

 joints of the antennae and the merus of the maxillipedes ; 

 c', chelipede, x7. 



