12 Rev. T. R. R. Stebbing on Amphipodous Crustacea. 



might be sexes of one species. On the other hand, it should 

 be mentioned that dredging in Salcombe Harbour yielded 

 several specimens of Iphimedia obesa without one of Iphimedia 

 Eblance. I. obesa appears to be very variable, but always 

 admirable, in colouring. Among the Salcombe specimens one 

 was whitish, striped with rosy pink, another lemon-coloured, 

 and several purplish grey, most charmingly relieved by scarlet 

 eyes. Very minute hairs stand erect on the hard brittle skin 

 of these portly and beautifully dressed little creatures. The 

 colour of the eyes unfortunately fades rapidly. 



Microdeitteropus versiculatus <$ . PI. I. figs. 2, 2 a-2f. 



This hitherto unfigured form of Microdeuteropus (Micro- 

 deutopus, Bate and Westwood) was dredged in Salcombe 

 Harbour ; and I was at first tempted to make a new species of 

 it, under the name of Microdeuteropus crinitipes, in allusion to 

 the great beauty of the hairy gnathopoda. But, upon minute 

 comparison, it appears to differ from the previously described 

 M. versiculatus, along with which it was taken, only in the 

 form of the first pair of legs, and is no doubt^the male of that 

 species. The Rev. Mr. Norman has, I find, already decided 

 this in his report to the British Association in 1868 on the 

 Shetland Crustacea. In that report he describes the first 

 gnathopods, and states that the hand is at least as wide 

 at the extremity as at the base, his specimens in this one 

 particular appearing to differ from mine. The chief difference 

 between the male and female forms is that in the former the 

 wrist of the first pair of legs is more bulky, and armed at the 

 infero-distal extremity with a strong tooth-like process curving 

 slightly outwards. The hand is not nearly so large compared 

 with the wrist as in the female ; but in both the wrist is con- 

 siderably larger than the hand. The palm is ill-defined ; the 

 finger is serrated on the inner edge, and is smaller than the 

 finger in the female. The inner side of the wrist in both 

 sexes is profusely adorned with hairs, the fringe consisting of 

 several fine bundles or closely set brushes. 



The second pair of legs are very peculiar ; they appear to 

 be exactly alike in both sexes, and have the meros, wrist, and 

 hand all embellished with copious hairs of great length. Under 

 the microscope these hairs are seen to be beautifully feathered. 

 It is, of course, only when the creature is in liquid that these 

 elegant appendages can be seen to full advantage. The wrist 

 and hand are both of them long and slender, the wrist being 

 the longer of the two and rather curiously curved ; the meros 

 is also long, closely adpressed to the wrist for about two thirds 



