466 Part III. — Twentieth Annual Report 



as in Cletodes. Tlie copepods for which I have instituted this genus do 

 not correspond to any described form known to me. The genus is named 

 in compliment to Dr, T. Wemyss Fulton, Superintendent of the Scientific 

 Work of the Fishery Board for Scotland. 



FuUonia hirsuta, T, Scott (sp. nov.). PI. XXIII., figs. 5-12. 



Description of the Female. — Length about -63 mm. (^ of an inch). 

 Body somewhat slender and sub-cylindrical, the posterior margins of 

 abdominal segments fringed with short projecting hairs, which give to this 

 part of the animal a peculiarly hirsute appearance, caudal furca short, 

 rostrum small (fig. 5). 



Antennules rather slender, and shorter than the cephalo-thoracic segment, 

 eight-jointed; the first three joints are moderately large, but the others are 

 short ; all the joints, with the exception of the first, are more or less 

 setiferous ; an elongated and slender asthetask springs from the upper 

 distal angle of the fourth joint (fig. 6). The approximate proportional 

 lengths of all the joints are shown by the formula — 



Proportional lengths of the joints, . 10 ' 14 • 11 • 6 ' 5 • 7 • 6 • 6 

 Numbers of the joints . . . .l'2-3'4'5'6"7'8 



The antennae are similar to those of Cletodes ; the secondary branches 

 are very small, and one-joi;ated, and furnished with a single terminal 

 hair (fig. 7). 



Mouth organs somewhat similar to those of Cletodes ; the second max- 

 illipeds, which are moderatelj^ elongated, are provided with long slender 

 terminal claws (fig. 8). 



The thoracic feet are all moderately slender; the outer branches of the 

 first four pairs and the inner branches of the second, third, and fourth 

 pairs are all three-jointed, while the inner branches of the first pair are 

 only two-jointed. All the inner branches are short ; those of the first 

 pair are just about half the length of the outer branches and carry three 

 small terminal setse or spines (fig. 9). The inner branches of the 

 other three pairs are scarcely more than a third of the length of the outer 

 branches (fig. 10). The outer branches of the same three pairs are 

 rather more elongated than those of the first pair. 



In the fifth pair the basal consists of a narrow plate articulated to the 

 last thoracic segment, and bearing one or two small marginal setae; the 

 exterior extremity of the basal joint is produced into a very narrow lobe 

 which forms the base of a small seta. The secondary joints are narrow 

 and sub-cylindrical, and about four times longer than broad, and 

 furnished with about half-a-dozen small marginal and terminal setse 

 (fig. 11). 



Habitat.— ^t&tion VI., Firth of Forth (oflT St. Monans), dredged 

 in 13 to 15 fathoms, on May 22nd, 1901. 



Remarks. — This species somewhat resembles Cletodes irrasa, T. Scott, 

 in its hirsute appearance, but in that species the antennules are six-jointed, 

 the inner branches of all the first four pairs of thoracic feet are only two- 

 jointed, while the caudal furca are moderately long and slender. The 

 species does not resemble any described form known to me. 



Nannopus palustris, G. S. Brady. PI. XXIII., figs. 13-25. 



1880. Nannopus palustris, Brady, Mon. Brit. Copep., vol. ii., 

 p. 101, pi. Ixxvii., figs. 18-20. 



This curious and rather interesting copepod, which Professor G. S. Brady 

 discovered living in brackish water pools in a salt march at Seaton 

 Sluice, Northumberland, and which has subsequently been found in 



