408 



EEPORT OF COMMISSIONER OF FISH AND FISHERIES. 



[(54] 



across the plate. In ])lace of this appendage, in the larger female ex- 

 amined, there is a small ovate lamella with a narrow fold along its inner 

 edge, while in the smaller female there is a minnte styliform process. 

 The inner ramus of the second i)leopod of the male is very slender 

 and less than a fourth as long as the outer, but bears on the anterior side 

 near the base an approximately- round chitinous plate about oi'"™ in 

 diameter with the inner and distal edges armed with short setie. The 

 inner ramus of the second pleopod of the female is similar, but wants 

 the chitinous i^late. The inner rami of the third, fourth, and fifth i)airs 

 of pleopods in both sexes are very slender, but increase successively 

 in length to the fifth pair where they are only a little shorter than the 

 outer rami. 



The number and arrangement of the branchise are indicated in the 

 following formula: 



Measurements in inillirneiers. 



Station 



Sex 



Leugth from tip of rostrum to tip of telson. 



Lenjitli of carapax including rostrum 



Leugth of rostrum 



Length of carapax excluding rostrum 



Breadth of carapax 



Hight of carapax 



Length of antenna! scale 



Breadth of anteunal scale 



Length of first perajopod 



Length of chela 



Breadth of chela 



Length of dactylus 



Length of second peraeopod 



Leugth of chela 



Bi eadt h of chela ' 



Length of dactylus 



Leugth of third pera'opod 



Length of chela 



Breadth of chela 



Lengih of dactvlus 



Length of foui th pera;opod 



Leugth of tilth peraeopod 



Leugth of sixth somite of pleon 



Hight of sixth somite of pleon 



Length of telsou 



Length of inner lamella of uropod 



Bi'eadt h of inner lamella of uropod 



Leugth of outer lamella of uropod 



Breadth of outer lamella of uropod 



Length of flist pleopod 



Length of its ramus 



Length of second pleopod 



Length of its outer ramus 



Length of its inner ramus 



Length of tilth pleopod 



Length of its outer lamus 



Length of its inner ramus 



d 

 199 

 99 

 52 

 47 

 23 

 25 

 32 

 13.5 



19.0 

 11.0 



28 



cT 



250 



122 



61 



61 



28 



32 



36.5 



16.0 



57 



13.8 

 2.7 

 8.4 



68 



14.8 

 2.8 

 9.3 



77 



16.0 

 j 2.7 

 I 9.5 



96 

 100 



25.5 



14.0 



35 



28.5 

 8.3 



36.0 



10.5 



77 



63 



72 



57 



11 



42 



30 



? 

 190+ 



50 



23 



25 



32.5 



14.0 



20.0 

 11.5 

 28 



2043 



300 + 



81 

 35 



41 



44.5 



21.4 



28.0 

 16.5 

 40 

 33.5 

 9.6 

 42.3 

 12.4 

 94 

 76 

 86 

 68 

 17 

 50 

 35 

 26 



