150 S. I. Smith on American Crustacea. 



what acutely arcuate. The appendages of the first segment are very 

 stout and nearly straight organs reaching to the middle of the sixth 

 segment, and articulated at their bases to a hard plate, which arches 

 round the intestinal canal much as described under the genus Cardl- 

 osoma. A deep groove extends from the basal articulation along the 

 inside of each of these organs, curving round to the outside and ter- 

 minating at the tip, which is truncate, turned sharply outward and 

 armed with sharp, hooked spinules, and, on the inferior edge, with a 

 small, curved process. The appendages of the second segment are as 

 long as those of the first, are widely separated at theii- bases, and the 

 terminal portions, which are lodged in grooves in the appendages 

 of the first segment, are long, very slender and taper to acute points. 



The color, in alcohol, is uniform dirty yellowish brown, lighter 

 beneath. 



Length of carapax, 38-7"'"' ; breadth of carapax, 57-2"'"' ; ratio, 

 1:1-48. Length of larger hand, 61-0"'™; breadth, 24-5; length of 

 dactylus, 37*0. Length of smaller hand, 41'0"'™; breadth, 12 '8; 

 length of dactylus, 24-5. 



The single specimen, which furnishes the above description, is in 

 the collection of the Boston Society of Natural History, and was col- 

 lected in a small stream near the center of the Isle of Pines by S. H. 

 Scudder and Winthrop S. Gilman, Jr. At the suggestion of Mr. 

 Scudder, the species is named for his friend. 



Epilobocera stimpson. 

 Epilobocera Cubensis stimpson. 



Annals Lyceum Nat. Hist., New York, vol. vii, p. 234, 1860. 



This species, discovered in fresh water streams on the Island of 

 Cuba, near Santiago, has close generic relations with the last species, 

 but the character of the front and of the epistome is very difierent. 



I have seen only a single, imperfect, female specimen loaned by Dr. 

 Stimpson. In this specimen, the dorsal surface of the carapax is arm- 

 ed, along the lateral border, with small, tuberculiform granules, and 

 the inferior lateral regions are armed, toward the lateral margin, with 

 similar granules which are conspicuous on the anterior part of the in- 

 ferior branchial region. The superior frontal crest projects consider- 

 ably beyond the inferior one and is divided into two, slightly convex 

 lobes by a well marked, median sulcus which extends back upon the 

 carapax to the raesogastric lobe. The inferior margin of the front is 

 straight, as seen in a front view, and its edge is slightly crenulated. 



