PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 511 



first pair in the male is very different, being as long as the protopod to 

 which it is attached, very narrow, and acutely triangular at the tip. 



Measurements in millimeters. 



Catalogue number 



Station 



Sex 



Length from tip of rostrum to tip of telson 



Length of carapax including rostrum 



Length of rostrum 



Height of carapax 



Breadth of carapax 



Length of eye-stalk and eye 



Greatest diameter of eye 



Length of antennal scale 



Breadth of antenual scale , 



Length of second gnat hoped 



Length of pvopodus 



Length ot dactvlus 



Length of first peraeopod 



Lingth of carpus 



Length of chela 



Breadth of chela 



Length of dactylns 



Length of second persEopod 



Length of carpus 



Lengt h of chela 



Breadth of chela 



Length of dactylus 



Length of third peraeopod 



Length of carpus 



Length of chela 



Brcadtti of chela 



Length of dactylus 



Length of fourth peraeopod 



Length of merus 



Length of carpus 



Length of propodus 



Length of dactylus 



Length of fifth peraeopod 



Length of merus 



Length of carpus 



Length of propodus 



Length of dactylus 



Length of sixth somite 



Height of sixth somite 



Length of telson 



Length of inner lamella of nropod 



Breadth of inner lamella of uropod 



Length of outer lamella of uropod 



Breadth of outer lamella of uropod 



8559 



8020 



Specimens examined. 



Locality. 



N. lat. 



W. long. 



0. 



a 



o ' " I Fath. ° 



39 29 00 71 46 00 \ 693 39 



39 35 00 ■ 71 24 30 I 1,043 38 



39 37 45 j 71 18 45 991 38 



39 12 00 I 72 03 30 707 39 



Nature of bottom. 



Date. 



1884. 



Gray mud, fine sand July 23 



Green mud Aug- 20 



Gray globigerina ooz6 Aug. 21 



Green mud I Sept. 13 



a 



a 



'3 

 c 



a, 

 m 



Is. 



Vs; 



! 1 



9 

 i' 



New Haven, Conn., October 30, 1884. 



