H. Richardson — Isopoch of the Bermudas. 283 



cies the flagellnra of the first pair of antennse is composed of seven 

 joints, the secondaiy appendage of three joints, and the flagellum of 

 the second pair of antennae of four joints. 



3. — In the much greater length of the uropoda, the inner branch 

 of whicli in A. propinqmis is half the length of tlie body and com- 

 posed of thirty-four joints, the outer branch consisting of eleven 

 joints, while in A. hdermedius the outer branch has only four joints, 

 and the inner branch is only twice the length of the terminal abdo- 

 minal segment and is composed of only fifteen joints. 



Parapseudes goodei Eichardson, sp. nov. 



Plate XXXVII. Figures 10-14. 



Surface of body smooth ; color light yellow. 



Head but slightly narrowed anteriorly. Eyes with large, brown 

 ocelli and placed on ocular processes, articulated to the head. 

 Frontal margin with a rostrum projecting between the basal joints 

 of the first pair of antenna?. The base of the rostrum is constricted, 

 the anterior margin broadly rounded. 



The first pair of antennae have the peduncle short, the first joint 

 twice as long as the second, the third half as long as the second, all 

 three with margins smooth, unarmed, but fringed with long hairs. 

 The flagellum consists of seven joints ; the secondary appendage of 

 four joints. The second pair of antennae extend only to the end of 

 the peduncle of the first pair; the flagellum contains five joints; a 

 scale is articulated to the peduncle. 



The first, second and third free thoracic segments are about equal 

 in length, the following three being longer than the first three, and 

 sub-equal. The first and second segments have a small epimeral 

 lobe on the antero-lateral margin. The third segment has a small 

 lobe about the center of the lateral margin. The lobes of the three 

 following segments are situated post-laterally. 



The abdomen is very short ; all the segments together not equal- 

 ling in length the last two thoracic segments. The first five seg- 

 ments have the margins produced at the sides, with deep lateral 

 incisions between the segments. 



The terminal segment is triangulate posteriorly with the apex acute. 

 The uropoda are quite half the length of the body ; the inner 

 branch consisting of about twenty-five joints, the outer and smaller 

 branch consisting of six joints. There are but four pairs of pleo- 

 poda. 



