ISOrODS OF THE PACIFIC COAST— IIICHABDSOX, 



859 



latious, with a small epimeral lobe in between. The lifth, sixth, and 

 seventh segments have each a large anterior lobe and a small posterior 

 epimeral lobe. 



The terminal segment has two bluntly triangular angulations, one 

 on either side of a bluntly triangular central j)ortion. The uropoda are 

 about as long as the caudal segment, are styliform, with branches 

 nearly equal. The first pair of legs are prehensile. The others are 

 simple, biunguiculate. One specimen was collected 

 at Chichagof Harbor, Attn (Aleutian Islands), by 

 Mr. W. H. Dall. 



lype.—Eo. 22610, TJ.S.N.M. 



27. JANIRA Leach. 



70. JANIRA OCCIDENTALIS Walker. 



Janira occidentalis Walker, Trans. Liverpool Biol. See, 

 XII, 1898, pp. 280, 281, pi, xv, figs. 7-10. 



Fig. 30.— Ianthe eros- 



TEATA. X 13i. 



This 



Habitat. — Puget Sound, Washington. 



28. J^^ROPSIS Koehler. 

 71. JiEROPSIS LOBATA, new species. 



Surface of body smooth. 



Color very peculiar and striking. The head is 

 brown. The first thoracic segment is perfectly white, 

 without any markings. The second, third, and fourth 

 segments are brown. The fifth and sixth are white. 

 The seventh thoracic segment and the caudal segment are brown 

 peculiar marking gives the body a striped appearance. 



Head large; front produced into a prominent triangular process, with 

 rounded apex, very broad at the base, occupying half the anterior 

 margin of the head. The antero-lateral angles of the head are pro- 

 duced in acute angles on either side to a distance equal to half the 

 length of the frontal process. The eyes, which are small, are situated 

 on the extreme lateral margins of the Lead. The first pair of antennte 

 are extremely small, equal in length to less than half the width of the 

 head; flagellum obsolete. The second pair of antennae are also 

 extremely short, equal in length to the width of the head, with rudi- 

 mentary flagellum, composed of about five joints, and with peduncular 

 joints dilated. Mandibles have the cutting part composed of five teeth ; 

 palp, three-jointed. 



The thoracic segments are subequal in length, with lateral edges 

 produced, but not laciniate, and separated from each other by lateral 

 incisions. 



Caudal segment regularly rounded, with two small incisions at the 

 place where the uropoda are attached, between which is a rounded lobe. 

 Uropoda are extremely small, short, nodiforiii. 



