388 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [44] 



Parapasiphae cristata, sp. nov. 



(Plate V, Fig. 3.) 



Female. — This species, which is represented by a single specimen 

 (7021), is very closely allied to the last. The dorsal crest of the cara- 

 pax, liowever, is not truncated nor sulcated in front, but evenly arcu- 

 ated longitudinally, and very sharp to the tip of the acute rostrum, 

 ■which is slightly longer than in P. sulcatifrons. The eyes are very 

 much smaller, their diameter being less than a third the length of the 

 stalk, while in P. sulcatifrons the diameter is nearly half the length of 

 the stalk. The eye-stalks themselves are fully as broad as in P. sul- 

 catifrons^ expanded at the distal end inside the eye, and terminating 

 in a prominent, curved, and conical tubercle, which projects much in 

 advance of the eye. The fourth somite of the pleon has a slight dorsal 

 carina back of the middle, and the posterior margin projects dorsally 

 over the tifth somite in a broad angular prominence, not a narrow tri- 

 angular tooth as in P. sulcatifrons. The fifth somite is rounded above 

 and not sulcated. 



Station 2100, October 3, north lat. 39° 22', west long. 68o 34' 30", 

 1028 fath.. globigerina ooze, temperature 37^°. 



Measurements in millimeters. 



Sex 9 



Length from tip of rostrum to tip of telson 73 



Length of carapax including rostrum 24. 4 



Length of rostrum 2. 5 



Hight of carapax 13 



Breadth of carapax 8. 5 



Length of eye-stalk and eye 3. 8 



Greatest diameter of eye - 1.1 



Length of antennal scale 10.0 



Breadth of antennal scale 3. 1 



Length of second gnathopod 22 



Length of first peraeopod 33 



Length of chela 13.0 



Breadth of chela 2. 5 



Length of dactylns 5. 8 



Length of second perteopod 44 



Length of chela 17. 5 



Breatlthof chela 2.0 



Length of dactylns 9.6 



Length of third peraeopod 29+ 



Length of merus 14. 



Length of caqius 0. 7 



Length of propodus 5. 2-f 



Length of fourth perajopod 13 



Length of propodus 3. 



Length of dactylns 0. 8 



Length of fifth peraeopod 16.5 



Length of propodus 5. 2 



Length of dactylns. 1. 3 



Length of sixth somite of pleon 8.2 



