78 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



the front is excavate on either side of a small median point. Eyes 

 large, situated in the lateral angulations. 



First pair of antennae have the first joint of the peduncle oblong, 

 the other two shorter and about equal in length, flagellum six to 

 seven jointed. The second pair of antennae' have a five-jointed 

 peduncle (the first joint being short and indistinct), of which the 

 second and fifth joints are longest, the flagellum being consolidated 

 into a single flattened, tapering joint, furnished with hairs. 



The first five thoracic segments are of equal length. The sixth is 

 somewhat shorter than any of the others, and the seventh is half as 

 long as the sixth. 



The abdominal segments are distinct, the first five taken together 



being no longer than the seventh 

 thoracic segment. The terminal 

 abdominal segment is long and nar- 

 row, rectangular in shape, with mar- 

 gins entire. The basal joint of the 

 uropoda is half as long as the termi- 

 nal segment of the abdomen; the 

 inner branch is rectangular, coarsely 

 denticulate, and reaches the apex of 

 the telson. The outer superior 

 branch is narrow, elongate, rectan- 

 gular, with margins coarsely denticu- 

 late, the teeth being close together. 

 The branches of the uropoda and 

 the terminal abdominal segment are 

 fringed with long hairs. 



The first three pairs of legs are 

 subchelate. The second and third 

 pairs have the posterior margin of the propodus armed with spines, 

 as in the preceding species. In the four following -pairs of legs the 

 anterior margin of the propodus is armed with four spines. 



A single female was collected by Prof. A. E. Verrill and party in 

 1898 at the Bermudas. Depth, 1-2 feet. 



Type specimen in Peabody Museum, Yale University. Cat. No. 3186. 

 This species is named in honor of Prof. A. E. Verrill of Yale 

 University. 



18. Genus COLANTHURA Richardson. 



Body^ narrow, elongate. First pair of antenna? composed of four 

 joints, the last joint being the flagellar joint. Second pair of antennas 

 composed of five joints, the terminal joint fringed with hairs. 



The first six segments of the thorax large, the seventh very short, 



FIG. 63. PARANTHUKA VERRILLII. a, AN- 

 TENNA OF THE FIRST PAIR, b, ANTENNA OF 

 THE SECOND PAIR. C, LAST TWO THORACIC 

 SEGMENTS AND ABDOMEN. 



