414 



REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



[70J 



the meius, niid the daclylus about three-fiftha as loug as the propodus. 

 The fifth pair are eunsiderably longer than the fourth; the nierns is a 

 little longer, and the carpus about as loug as in the fourth ; the pro- 

 podus is fully half as long as the carpus, and more than twice as long 

 as in the fourth, and the dactylus is very slender and only about a fourth 

 as long as the propodus. 



The three anterior somites of the pleon are rounded above, but the 

 fourth, fifth, and sixth are compressed and sharply carinated dorsally, 

 and on the sixth somite the carina terminates in a small tooth at the 

 posterior margin. The telson is much longer than the sixth somite, 

 tapers regularly to a narrow tip, which, however, is not quite ])erfect in 

 either of the specimens, and is armed either side about a fourth of the 

 way from the tip to the base with a very long and slender spine. 



Measurements in miUimeters. 



station : 2037 



2076 



Sex 9 



Length from tip of roslrnm to tip of telsoa 51 



Length of carapax including rostrum 19. 2 



Length of carapax e.\cluding rostrum , : 15. 



Length of lostium i 4. 3 



Length of eyc-.stalk and eye ' 2.4 



•Greatest diametei- of eye 1.2 



Length of antennal scale 8. 



Breadth of aut«nual .scale i 2.2 



Length of .second gnathopod 1 24. 



LongI h of first ])enEopod \ 16. 5 



Length of carpus I 4. 2 



Length of chela ' 2.8 



Length of second pertDopod 



Length of earj)us 



Length of chela 



Lengtli of third peraeopod 



Length of c,ii7>u8 



Length of chela 



Length of fourth peroeojwd 



Length of i)ropodus 



Lengtli of dactylus 



Length of fifth perajopod 



Length of ])ropodus 



Length of dactylus 



Length of sixth somit« of pleon 



night of sixth somite of pleon 



Length of telson 



Jjength of inner lamella of uropod 



Length of outer lamella of uropod 



21.0 

 7.5 

 3.2 



27.0 



ILO 

 3.7 



38.0 

 3.4 

 2.0 



43.0 

 7.4 

 1.9 

 0.5 

 3.5 

 8.5 



.3.3 

 l.C 



10.0 

 2.8 



3J.0 



21.0 

 5.4 

 3.7 



27.0 



10.0 

 3.7 



33.0 



14.0 

 4.5 



45.0 

 4.3 

 2.4 



54.0 

 9.3 

 2.1 

 8.0 

 4.3 



U.O 

 8.7 



ILO 



Station 2037, July 18, north lat. 38° 50', west long. 69° 23' 30", 1,731 

 fathoms, globigerina ooze, temperature 38° — 1 9 (7147). 



Station 207G, September 4, north lat. 41° 13', west long. 60° 00' 50", 

 DOG fathoms, blue mud— 1 5 (7148). 



