TANAIDJE. 35 



joint of the antennules. The first gnathopods arc massive ; 

 the large thumb is projected sideways, forming an angle with 

 the anterior part of the hand, it carries two or three setoe and 

 a small nail at the extremity ; this finger has its outer margin 

 tuberculated. The second gnathopods are almost entirely 

 devoid of setse ; the meros, carpus and propodos subequal in 

 length ; the dactylus is not half as long as the preceding 

 joint, and consists of two parts, the distal portion slightly 

 curved, and the extremity not acute. Uropods with both 

 rami two-jointed ; joints of the inner branch very long, the 

 outer branch shorter than the first joint of the inner branch. 



In the male the antennules are six-jointed, the first joint 

 exceeds in length the combined length of the rest ; as in the 

 female, the antennae do not reach the extremity of the basal 

 joint of the antennules. The first gnathopods have the hand 

 greatly expanded distally in the form of a broad transverse 

 palm which has a protuberance near the base of the finger, 

 this is followed by a conspicuous sinus, while the more distal 

 portion of the palm is crenulated, and bears two setse and at 

 the end a spine of considerable size ; the finger is slender and 

 very long, considerably longer than the palm, with two 

 spinules on the inner edge. 



The female types described by Stebbing were found in the 

 sands at Lee and Woolacombe, North Devon. We have 

 dredged females in shallow water at Exmouth, Dartmouth, 

 and several spots in the neighbom'hood of Plymouth (Jelly- 

 cliff and Whitsand Bays, &c.) ; a male was procured at 

 Exmouth, and a second at Ilfracombe. 



PARATANAIS BATEI, G. 0. Sars. 



1858. Tanais Savignii, Gosse, Manual Marine Zoology, vol. i. p. 137 



(not T. Savignii, Kroyer). 

 1866. Paratanais forcipatus, Bate & Westwood, vol. ii. p. 138 (not 



Tanais forcipatus, Lilljeborg). 

 1886. Paratanais Safei, G. O. Sars, " Middelhavets Saxipoder," 



p. 338, pi. xiv. figs. 1-3. 

 1896. Paratanais Batei, G. O. Sars, Crust. Norway, Isopoda, p. 16, 



pi. vii. 



Falmouth Harbour, 1884 ; Jellycliff Bay and other parts 

 of Plymouth Sound, 1903 (A. M. N.). 



LEPTOGNATHIA BREVIREMIS (Lilljeborg). 



1896. Leptognathia breviremis, G. 0. Sars, Crust. Norway, Isopoda, 

 p. 28, pi. xiii. fig. 1. 



Plymouth, 1889 (A. M. N.). 



