A New Species of Spirontocaris 



143 



Rostrum, antennules, antennae, third maxillipedes and first and 

 second pairs of pereiopods evenly sprinkled with colour; pereiopods three 

 to five with a group of spots on the coxa and basis, one on the ischium, 

 two on the merus, two or three spots on the carpus and one group on 

 the propodus. Protopodites of the pleopods with from four to six groups 

 of spots and a few on the exopodites. |^ 



Variations. — The normal number of supraorbital spines is two, but 

 in a 19 mm. male specimen only one, with no trace of a second, was 

 found. The variations in the number of spines are as follows: 



No. spines 



Dorsal carapace 



Dorsal rostrum 



Ventral rostrum 



Lateral telson 



Merus third pereiopod . 

 Merus fourth pereiopod 

 Merus fifth pereiopod . . 



Dimensions. — Females range in length from 25 to 18 mm., only one 

 male was examined, it being 19 mm. in length. 



Distribution.— -New Brunswick; Head Harbour, Campobello island: 

 Green Islands, Grand Manan: Station 113, Grand Manan. 



Spirontocaris pusiola (Kroyer). PI. VI, fig. 14. 



Colour. — Only a few deep red to orange red spots scattered over a 

 whitish background. They are evenly spread over the cephalothorax and 

 the first two abdominal segments. The third abdominal segment with 

 five or six scattered spots; and the fourth to sixth segments with only 

 two or three spots on their postero-ventral surface, the postero- ventral 

 edges of these segments being defined by a sharp red line. 



Rostrum without colour. A few spots scattered on antennules and 

 antennae; edges of the segments of the small flagellum of the former red; 

 lateral edges of squame of antenna red, as are the edges of the joints of 

 the antennal flagellum. Third maxillipedes and second and third pereio- 

 pods with scattered spots. Third to fifth pereiopods with spots on coxa 

 and basis, three or four in two groups on the merus, one on the carpus, 

 and one group on the propodus. Protopodite of pleopods with one to four 

 spots. Protopodite of uropod with one. Edges of uropods red. 



