and Uttle-lcnoirn Ampldpodous Crustacea. 447 



branches of the penultimate pair, which are much .shorter than 

 either of the other pairs, are unequal. The ultimate andante- 

 penultimate pairs have the pethmcle h3n;,a'r than the branches ; 

 the branches subequah AVhik' the pereion is stout, the pleon 

 is narrow and elon,u:ated. The colour is tawny, with some 

 red sj)ots chietly on the large coxie. 



The generic name refers to the beauty of the denticuhite 

 membranaceous thighs ; the spccitic name to the peculiarity 

 of the linger of the second gnathopods. 



Exuntjuia stilipcs, Norman, and Cratipjjus tentiipes, Spence 



Bate. 



The genus rVrt/<)>^»A' and the si>ec{esCratippus tenidpes were 

 founded by Mr. Spence Bate on a single specimen, and that 

 aj)parently an abnormal or imperfect one. The type specimen, 

 such as it was, has been unfortunately mislaid or lost. It thus 

 becomes imjjossible absolutely to decide whether the genus 

 Exunguia (Norman) is or is not identical w'ltliCratippus, unless 

 fresh specimens of the latter should happen to be found agree- 

 ing with the original description. Exunguia stilipeswAH de- 

 scribed in this Journal (ser. 4, vol. iii. p. 359) by the Rev. A. 

 M. Norman, with that writer's usual clearness and accuracy. 

 Specimens minutely agreeing with his description may be 

 obtained at Meadfoot andat Anstis' Cove, Torquay, by a care- 

 ful examination of the sponge Ilah'c/iondn'a pan icea, which in 

 many j)laces coats the rocks beneath overhanging seaweeds. 

 The sponge should be broken into small pieces, when now and 

 then a little white glistening line, about an eighth of an inch 

 long, will reward the searcher with the desired object. A 

 person of sharp sight may notice tliat the white line is orna- 

 mented by a pair of red eyes. 



Accompanying 3Ir. Norman's description above referred to 

 are figures of certain }jortions of the animal — one especially 

 deserving of attention, which shows tlie microscopic serrula- 

 tion of the branches of the uropoda. It does not appear, how- 

 ever, that any figure of the whole animal has hitherto been 

 published. In regard to the lower antenna, I may notice 

 that the underside is flattened and that the outer edges are 

 minutely serrulate. The flagella of both pairs of autennse 

 liave some rather long fine hairs projecting from them. The 

 eyes are round ; the faceting over the red pigment is white. 

 Under the rostrum of the head there is a projecting triangulai* 

 plate, beneath which are jiacked the maxillipeds. The meta- 

 carpus of the first gnatho|)(>ds is stouter than the wrist and 

 hand. The antepenultimate uropods are folded under tli.<i 



