116 CARL BOVALLIUS, AMPHIPODA HYPERIIDEA. I. 2. HYPERIID^. 



Genus 3. EUIULOPIS, C. BOVALLIUS, 1887. *) 



Diagn. Caput magnum, plus minusve globosum. Pevoeon hirsutum, epimeris distinctis instructum. 

 Pedes percei primi paris subcheliformes, pedes secundi paris plus minusve cheliformes; 

 carpus dilatatus, carpus primi paris non productus, vel multo minus quam carpus secundi 

 paris productus, processus carpi, vel angulus postero-inferior carpi, anguste excavatus, 

 in formam cochlearis redactus. Carpus pedum tertii ac quarti parium non dilatatus. Pedes 

 parium trium ultimorum longitudine subsequales, praacedentibus aut non, aut paullo, lougiores. 

 Pedes uri mediocres, non elongati. 



The head is large, more or less globular. The perceon is hirsute, provided with distinct epi- 

 merals. The first pair of peraeopoda are subcheliform, the second pair are more or less 

 cheliform; the carpus is broad, that of the first pair is not produced, or much less produced 

 than that of the second pair; the carpal process, or the hinder lower corner of the carpus, 

 is narrowly hollowed, gouge-shaped. The carpus of the third and fourth pairs is not di- 

 lated. The last three pairs are subequal in length, not longer than the two next preced- 

 ing pairs, or only a little longer. The uropoda are mediocre, not elongated. 



Syn. 1887. lulopis, C. BOVALLIUS. »Systematical list of the Amphipoda Hyperhdea». Bib. t. K. Sv. Vet. 



Ak. Handl. Bd. 16. N:o 16, p. 17. 



The genus Euiulopis is easily distinguished from all the other genera of the family, 

 and also from all the other Hyperiidean genera, by the hirsute character of the integument 

 of the body. Something pointing to this remarkable feature is, however, to be seen in 

 some other representatives of the family Hyperiidse, but there in a much smaller scale, 

 and limited only to a certain part of one or more of the appendages of the body, as for 

 instance, in the metacarpus of the third and fourth pairs of perseopoda of Hyperoche picta, 

 described next above, in the first two pairs of pereeopoda of Tauria macrocephala, in the 

 carpus, and especially in the metacarpus of the first two pairs of Hyperia medusarum, 

 0. F. Muller, and in some extent also in the legs of some other species of Hyperia, but 

 there it is rather bristles than hairs which cover the surface of the integument. Also the 

 hairs fringing the rami of the uropoda of Phronimopsis may be mentioned as perhaps 

 homologue with the strongly developed hair-covering existing in Euiulopis. 



Also the form of the carpus of the first two pairs of perasopoda is characteristical 

 for this genus, being narrowly hollowed, and having the carpal process gouge-shaped. The 

 carpal process, or the lower hinder corner of the carpus, is namely more compressed than 

 in Hyperiella, Parathemisto and Euthernisto, most resembling that in Themistella, but on 

 the other hand the carpus in Euiulopis is much more dilated than that in Themistella. 



] ) As a zoological name, most closely resembling lulopis, Iulopsis, was used already in 1874 by Heee 

 for a genus of Myriopoda, I have corrected the later Hyperiidean name to Euiulopis, in order to avoid 

 confusion. 



