190 Bulletin, Vanderlilt Marine Museum, Vol. Ill 



the Canadian, Labrador, Nova Scotian and New England coasts, as 

 far south as Cape Cod; also from eastern Greenland, Iceland, the 

 Faeroes, from northern Europe southward to Saltenfjord, Norway; 

 from northern Siberia eastward to Long. 170° 17' East; from the 

 tide line to a depth of 246 fathoms. 



Material examined : Several specimens, dredged in 40 fms., middle 

 of St. George's Bay, Newfoundland, Sept. 2, 1926. 



Technical description : Animal 54 mm. long ; carapace, including 

 rostrum, 14.5 mm. long in the median dorsal line ; abdomen about 40.5 

 mm. long. The rostrum is short, tongue-like, not reaching beyond 

 the eyes, two-fifths as wide dorsally as long, the distal end rounded 

 broadly, almost subtriangulate, the margins slightly carinate, a slight 

 median carina also ; the postorbital angle is a blunt, short, triangular 

 tooth ; there is a more prominent spine at the antennal angle reaching 

 almost as far forward as does the basal article of the antennae. The 

 carapace is short, wide and convex, with a median dorsal carina rep- 

 resented by a gastric spine and behind it a crest composed usually of 

 four sharp spines arising from a continuous ridge. A pair of sub- 

 median carinae occur on the first abdominal segment. On either side 

 of the median crest of the carapace there are three lateral carinae, the 

 uppermost one arising midway the orbital margin and extending to 

 the posterior margin of the carapace, consisting of ten or twelve spines 

 in line; this carina is continued on the first abdominal segment; the 

 median lateral carina is similarly comprised of a series of spines aris- 

 ing at the postorbital angle and continuing to the posterior margin 

 of the carapace. On the first abdominal segment this carina is con- 

 tinued as a ridge, terminating anteriorly in a sharp tooth, and is more 

 weakly indicated on the second and third segments. The lower lateral 

 carina arises in a sharp tooth at the antennal angle and extends to 

 within a short distance of the posterior margin of the carapace. The 

 extreme lateral margin of the carapace is slightly carinate but not 

 dentate. The first abdominal segment is short, with the three above- 

 described lateral carinae ; the lateral margin convex and with a slight 

 depression on the outer surface. The second segment is longer than 

 the first segment and has its epimeral plate expanded, subcircular, 

 overlapping both adjacent segments. The third segment is one and 

 two-thirds times as long in the median line as the second and has the 

 lateral margin rounded; the fourth segment is three-fourths as long 

 as the third and has the postlateral margin very convex. There is a 

 median dorsal carina on the third and fourth segments. The fifth 



