Richardson] TERRESTRIAL ISOPODS OF FAMILY EUBELID.E 239 



of the first segment form a narrow border on either side, wider 

 anteriorly than posteriorly and considerably thickened. They are 

 separated from the segment by a rather deep groove, and do not 

 quite reach the post-lateral angles of the segment. They are cleft 

 posteriorly, the fissure not being very deep, and the inner portion 

 is smaller than the outer. The coxopodites are present on the 

 anterior portion of the second and third segments in the form of 

 thickened ridges, that of the second segment being more in the 

 form of a tooth with sharp edge. 



The first two segments of the abdomen have the lateral parts 

 covered by the seventh thoracic segment. The lateral parts of 

 the following three segments are well developed and produced 

 backward. The first five segments are about equal in length. 

 The sixth or terminal segment has the base triangular in shape, with 

 the apex produced in a moderately wide process, with parallel sides 

 and rounded at the extremity. The basal article of the uropoda is 

 quadrangular in shape and occupies all the space between the lateral 

 angles of the fifth segment and the apical process of the sixth seg- 

 ment. It extends to the end of the lateral angles of the fifth seg- 

 ment and to the tip of the apical process of the sixth segment. A 

 longitudinal carina extends along the entire length of the article 

 near the inner margin. There is a shallow notch or excavation in 

 the posterior margin near the inner angle, in which the small outer 

 branch is inserted. The inner branch does not reach by some dis- 

 tance the extremity of the apical process of the sixth abdominal 

 segment. The legs are all ambulatory. 



One specimen of this species was collected by Dr. O. F. Cook 

 at Mt. Coffee, and four others were collected at Sierra Leone. 



The type is from Sierra Leone and is now in the possession of 

 Dr. O. F. Cook. 



All the species of this genus hitheto described are from the West 

 Indies. 



ETHELUM QUADRIMACULATUM, sp. nov. 



Body ovate, slightly convex, contractile into a ball. Surface 

 smooth. Color, brown, mottled with yellow, there being four large 

 conspicuous yellow spots, one on either side of the second thoracic 

 segment and one on either side of the seventh thoracic segment, 

 occupying the entire lateral part of the segment. The uropoda are 

 also yellow, as well as the two basal articles of the peduncle of 

 the second antennae. There is a minute granule on either side of 

 each one of the thoracic segmenls. 



