270 CAKL BOVALL1US, AMPHIPODA HYPERIIDEA. I. 2. HYPERIID^E. 



Parathemisto gracilipes. 



subequal, carpi scarcely inferiorly produced. First and second pereiopoda having the carpi con- 

 siderably broader than the propoda. Three posterior pairs of pereiopoda very long, subequal, 

 and having the anterior margins fringed with fine comb-like cilia.» 



»The hands can scarcely be described as subchelate, although they possess a tendency in 

 the direction common to most animals in the division. » 



»The caudal appendages are rather long and slender.» 



»We have frequently doubted whether this species strictly belonged to the present genus 

 (Hyperia). But finding that it agreed very closely with H. trigona, of Dana, from Cape Horn, 

 we have considered it desirable that it should remain therein for the present. The form of the 

 first two pairs of walking legs differ from the more typical species. The two succeeding pairs 

 of legs in their length and armature suggest a relationship to the genus Cyllopus, which is also 

 supported by the form of the inferior pair of antennae, but from that genus this species is ex- 

 cluded by the length of the last pair of walking legs, which in Cyllopus are rudimentary.)) 



A. Merle Norman in 1869 says: 



»Bate and Westwoods »H. oblivion, which has not the propodos of the gnathopods at all 

 produced, cannot be Kroyer's species nor that here described (= the true Parathemisto oblivia, 

 Kroeyer). I would propose for it the name H. gracilipes.n 



7 PARATHEMISTO GOESI, n. sp. 



PI. XII, fig. 1 — 10. 

 The name is given in honour of Dr Axel Goes of Kisa, Sweden. 



Diagn. Corpus non carinatum. Caput segmentis duobus primis peraei longius. Carpus pedum perm 

 primi paris metacarpo multo brevior; raargo anterior levis, margo posterior spinis paucis 

 instructus; margo posterior metacarpi non serratus, spinam unam gerens; dactylus dimidium 

 metacarpi longitudine asquans. Metacarpus pedum secundi paris carpo multo longior; pro- 

 cessus carpalis dimidio metacarpi brevior, spina terminali carens; dactylus dimidio meta- 

 carpi longior. Metacarpus pedum tertii ac quarti parium carpo paullo longior. Metacarpus 

 pedum parium trium ultimorum articulis duobus praecedentibus brevior. Pedunculus pedum 

 ari ultimi pai'is quam telson duplo longior; ramus externus interno longior. 



The body is not cariuated. The head is louger than the first two peraeonal segments together. 

 The carpus of the first pair of peraopoda is much shorter than the metacarpus; the front 

 margin is smooth, the hind margin is provided with a few bristles; the hind margin of the 

 metacarpus is not serrated, and has a single bristle; the dactylus is half as long as the 

 metacarpus. The metacarpus of the second pair is much longer than the stem of the 

 carpus; the front side of the carpal process is not half as long as the hind margin of the 

 metacarpus, and wants a terminal spine; the dactylus is more than half as long as the 

 metacarpus. The metacarpus of the third and fourth pairs is a little longer than the 

 carpus; that of the last three pairs is shorter than the two preceding joints together. The 

 peduncle of the last pair of uropoda is twice as long as the telson; the inner ramus is 

 longer than the outer. 



