Rev. T. R. R. Stchhing 071 Amjjhtpodous Crustacea. 13 



of the length of the Latter, where it terminates in a fine point. 

 The hand, at least in dead specimens, is very much inclined 

 to take a twist, so as not to lie in the same plane with the 

 rest of the limb. This is also the case with the hand of the 

 first pair in the male ; and the peculiarity complicates the task 

 of examination as well as that of drawing an exact profile. 



As the specimen described in the ' British Sessile-eyed 

 Crustacea ' was imperfect, it may be well to add that the last 

 pair of legs are (as is surmised in that valuable work, and in 

 agreement Avith the description of the genus) much longer than 

 the rest ; while the inferior antennas are the same as those of 

 Messrs. Bate and Westwood's Microdeutopus anomalus (on 

 the precise specific position of which as a female form Mr. 

 Norman's very important paper above mentioned should be 

 consulted), with a peduncle as long as that of the superior 

 antennee and a flagellum much shorter than the peduncle. 



Microp'otojms macidatus^ Norman. PI. II. figs. 5, 5 a, 5 b. 



This small Amphipod is described by the Rev. A. M. 

 Norman in the ' Annals and Magazine ' for December 1868. 

 Mr. Norman, who established the genus in which it is 

 placed, reports it as found among Laminarioi at Tobermory, 

 in the Island of Mull, July 1866. I have obtained it plenti- 

 fully, and of both sexes, this year as the result of dredging in 

 Torbay. As only portions of the animal have been hitherto 

 figured, it seems worth while to give a full-length portrait of 

 it. It should also be noticed that the wrist in the second pair 

 of gnathopods is much broader than would appear from the 

 figure appended to Mr. Norman's description. It receives the 

 hand into a sort of cup or segment of a cup. When the hand 

 is viewed on the inner side, the cup-shape of the wrist is not 

 apparent, while the huge finger also obscures the tooth-like 

 processes of the hand, witli the exception of a portion of the 

 largest process. The thigh seems to be deeply grooved length- 

 wise in a line with the back of the hand. The wrist of the 

 female has been already fully described by Mr. Norman as 

 " very short, broader than long, and somewhat cup-shaped, 

 the infero-posteal angle being projected into a rounded lobe." 



Gammarella hrevicaudata and Oammarella {hrevicaudata ? ) 

 Normanni. PI. II. figs. 3, 3a-3^. 



There can be no doubt that the above-mentioned names 

 have been assigned to the male and female of a single species. 

 Messrs. Bate and Westwood express their suspicion that this 



