294 Canon A. M. Norman a)id Dr. T. Scott on 



carries five setae ; the setse are arran frecl in three groups — the 

 two outer are close togetlier, so also are tlie next two, but 

 there is a moderately wide space between the two pairs of 

 setffi and also between the inner pair and the last seta situated 

 a small distance up on the inner edge ; in the space between 

 the outer and inner pairs there appears to be a small sjjine. 

 The secondary joints are broadly ovate, the length being 

 scarcely twice the width at the broadest part ; the inner 

 margin is nearly straight, but the outer is moderately convex ; 

 a small seta springs from the middle and an elongated one 

 from near the distal end of the inner margin^, while other five 

 are arranged round the lower halt" of the outer margin and 

 apex. 



^riie f ureal joints are very short. 



Hab. Dredged near Beggar's Island, Plymouth, in 1889 ; 

 app uently not very common. 



This species is readily distinguished by the robust form 

 and structure of the first pair of natatory legs, the stout eight- 

 jointed antennules, and the form and armature of the tifth 

 feet. 



Daciylopusia ornata, sp. n. 



Description of the female. — Body moderately robust; length 

 •62 mm. (:^^ of an inch). 



Antennules short, moderately stout, and composed of six 

 subequal joints. Outer ramus of posterior antennae appa- 

 rently only two-jointed. Mouth-organs as in I), rostratus, 

 T. Scott. ■ 



The first thoracic legs are short and stout; the three-jointed 

 outer branches are rather shorter than the first joint of the 

 inner ones ; the first two joints have the outer margin fringed 

 with short seta^, and a setiferous spine springs from their 

 outer distal angles ; the second joint bears also a plumose 

 seta on its inner margin ; the end joint is small and bears 

 several spiniform apical setse. The inner branches appear to 

 be only two-jointed ; the first is stout and elongated, and 

 bears a long plumose seta on its inner margin ; the end joint 

 is short and probably composed of two coalescent joints, it is 

 furnished with a stout and slightly curved claw-like terminal 

 spine. The next three pairs resemble those in D. rostrata 

 (r. Scott). 



The fitth pair are broadly larnelliform ; the primary joint 

 bears intciiorly five sette of unequal lengths on the broadly 

 rounded distal edge ; the secondary joint is subquadrangular 

 and carries five stout seta', one being near the distal end of 



