396 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxvii. 



above the eye. Ea'CS nearh^ round and of medium size. Gena below 

 eye obtusely pointed posteriorly. Hind margin of antennal groove 

 sharply prominent and with a number of minute hairs. Antennal 

 groove extending to two-thirds the depth of the head. Bristles on 

 second antennal joint not extending l)eyond third joint. Behind the 

 middle of the antennal groove on the disk of the vertex there is one 

 stout })ristle. The usual bristles occur on hind margin of head. The 

 labial palpi exceed slightly the anterior trochanters. Pronotum with 

 a transverse row of about fourteen bristles on disk, and on hind mar- 

 gin a ctenidiuni of eighteen or twent}^ stout spines. Mesonotum and 

 metanotum each with two rows of bristles, those in posterior row 

 larger and fourteen in num))er, the anterior row with numerous 

 smaller ones. Ilind margin of metanotum with two small teeth on 

 each side. First three abdominal tergites with one small tooth on each 

 side. Abdominal tergites each w^th two rows of bristles, the pos- 

 terior with about fourteen larger, the anterior with fewer smaller 

 bristles. Antepygidial bristles three on each side, the inner smallest, 

 the middle longest. Abdominal sternites each with a row of eight or 

 ten rather stout bristles. Two stout bristles occur on each side just 

 beneath the pygidium. Lateral portion of eighth tergite w^ith three 

 or four stout bristles on the hind margin. 



Female style rather stout, narrowed to a point, where there is a 

 long bristle; there is also a bristle on the lower margin, and one very 

 minute one above. The substylar flap is pointed, possesses several 

 long, slender bristles at apex, and a number of short, stout bristles on 

 lower margin. 



Hind coxge without minute teeth on inside. Hind femur with a row 

 of four to five small bristles on the side. Spines on the apex of second 

 joint of hind tarsus shorter than third joint. First pair of spines on 

 last joint of hind tarsus somewhat dislocated toward median line. 

 Lengths of joints of hind tarsi in the proportion 21.5-13.5-8-5-9. 



Length, 2.5 nun. Color, pale l)rown. 



Type.— Odt. No. 6901:, U.S.N.M. 



CERATOPHYLLUS OCULATUS, new species. 

 Plate XIX, tigs. 10-14. 



This species is based on a single male specimen collected on mink 

 in Washington, District of Columbia, by Mr. A. A. Harsall. 



The head is flattened above as usual, the frontal notch very distinct 

 and rather high. The lower row of genal bristles contains two large 

 bristles with one small one between them. The superior row" is repre- 

 sented b}^ four or five bristles extending very obliquely from above 

 the uppermost bristle on the upper margin of the eye to the upper 

 fourth of the antennal groove. The antennal groove extends to 

 the upper margin of the head, and is suddenly, broadened in the 



