144 MR. T. EDWAUD OJST THE HABITS ETC. OE THE HTPEEIIDJ!. 



name, call S. minuta. The males of all these, I say, can be 

 clearly and satisfactorily defined ; at least, so it appears to me. 

 So confident am I in this, that those I have in my own collection 

 are so arranged, and marked male and female. 



The only species (as I have already said) to which I have not 

 yet been able to assign a female is L. Kinahani. I thought I 

 had discovered the desideratum once ; but unhappily the speci- 

 mens were lost before the examination and comparisons were 

 completed. 



Although this species may be, and is occasionally, found in 

 company with S. galha, the one is easily distinguishable from the 

 other. They are nothing alike, either in form or colour; not 

 to speak of the long and remarkably slender antennae of the one 

 in comparison with those of the other. S. Kinaliani is longish, 

 more shrimp-like, especially behind, and not so round and dumpy 

 as a. galha, and the colour is always much darker. The eyes, 

 too, are dark instead of being of a light green. I am speaking of 

 the living animal ; for the figures which I have seen all appear to 

 me to have been taken from rolled up and contracted specimens. 



Prom these circumstances, then, we shall, for the present, lay 

 aside the term Lestrigonus — except in the case of L. Kinaliani, 

 which must remain as he is in the meantime — and adopt that 

 of Hyperia, and, when referring to the sexes, simply use the 

 designation of onale ov female as occasion may require. 



I have ah'eady said that it is the general belief amongst carci- 

 nologists that the animals composing this family are parasitical in' 

 their habits, and have never been found but on the Medusa and 

 on fish. 



This does not exactly agree with my experience ; for I have 

 taken all the five species mentioned swimming free. I do occa- 

 sionally find L. Kinahani and H. galha in a Medusa, but have 

 never as yet met with any of them attached to fish. 



But, as already observed, is the Medusa or even a fish their 

 real and true habitat ? I rather think not ; and my reason is this : 

 they appear to me, although they do occasionally come inshore, to 

 be what I would call an out- or deep-sea and a wandering genus. 

 ISTow, from this circumstance, I believe that on coming in contact 

 with the gill- cavities of the Medusa, and finding them a conve- 

 nient and, perhaps, in some measure a comfortable receptacle, 

 some may for a time avail themselves of the opportunity thus 

 afi'orded of being carried through the water at the expense of 

 another. 



