210 BULLETIN OF THE 



segments are smooth, the impressed lines are absent with the exception of the 

 hinder one of the deeply cut pair, and the pleurae are broadly rounded below ; 

 the peduncle of the second antenna is not much over one half the length of 

 the antennal scale, and the whole appendage is but little longer than the 

 carapace. 



Length, 62 mm. ; carapace, 20 mm. 



Station 3367. 100 fathoms. 1 male, 1 female. 

 " 3369. 52 " 1 male. 



" 3378. 112 " 2 females. 



" 3379. 52 " 1 female. 



The color in life, as shown in a sketch made by Mr. "Westergren, is light 

 greenish yellow, banded with vermilion on the branchial regions and abdomen. 

 Appendages red, antennary fiagellum transversely banded with light and dark. 

 The coloration is quite different from that of S. edwardsii as given by Dana 

 (Crust. U. S. Explor. Exped., p. 602). 



Sicyonia picta, sp. nov. 



Eostrum a little shorter than the eyestalks, laterally compressed, elevated, 

 armed with six teeth, three superior, three terminal ; inferior margin ciliated. 

 Carapace carinate in the median dorsal line ; the carina is furnished with two 

 teeth, one minute, on the anterior part of the gastric region at the base of the 

 rostrum, the other larger, over the cardiac region. An infra-orbital and an 

 hepatic spine are present. General surface of carapace punctate and sparsely 

 clothed with setae. Abdominal segments smooth, with a median dorsal carina 

 which rises into a strong tooth on the first segment directed upward and 

 forward ; on the fifth and sixth segments the carina is drawn out into an acute 

 tooth which is directed horizontally backward. The pleura? of the abdominal 

 segments are margined and armed with a tooth on the lower border ; on the 

 second, third, and fourth segments the tooth is hamate, being directed out- 

 ward and backward. The general surface of the abdomen is smooth, with a 

 transverse groove on each side of the segments. The telson is channelled 

 above, acute at the tip, and armed with a pair of small lateral spines near the 

 distal end. The eyes are very large, horizontally flattened. Basal segment of 

 antennule armed with two spines on its exterior border ; flagella shorter than 

 the peduncle. The peduncle of the second antenna reaches about two thirds 

 of the way to the end of the scale ; the fiagellum is about equal to the abdo- 

 men in length ; the basal segment of the peduncle is furnished with a long and 

 acute external spine. The sternum is armed with a long spine between the 

 bases of the second, third, and fourth pairs of legs, as is usual in species of this 

 genus. The last pair of abdominal appendages are a little shorter than the 

 telson. 



Length, 70 mm. ; carapace, 24 mm. 



Station 3355. 182 fathoms. 1 male. 



" 3387. 127 " 6 males, 4 females. 



