60 



CARL BOVALLIUS, AMPHIPODA HYPERIIDEA. I. 2. 



MIMONECTID^. 



Syn. 1885. Mimonectes, C. BOVALLIUS. 



A. Gekstaecker. 1886. 



C. BoVALLIUS. 



1887. 



1887. 



»Mimonectes, a vemarkable genus of Ani- 



phipoda Hypeiidea», p. 2. Nova Acta 



Soc. Reg. Scient. Upsal. Ser. IIL 



Vol. 13. 

 D:r H. G. Bronn's Klassen und Ord- 



nungen des Thier-Reiclis. Bd. ö. Abth. 



•2, p. 491. 

 »Systeiuatical list of the Amphipoda Hy- 



periidea». Bih. t. K. Sv. Vet. åk. 



Handl. Bd. 11. N:o 16, p. 15. 

 »Arctic and Antarctic Hyperids». Vega- 



Exp. Veteusk. Iakttagelser. Bd. 4, 



p. 558. 



Probably the genus Mimonectes has its nearest relatives in the families Thauma- 

 topsidoe and LanceoUdm, agreeing with them in the shape of the first pair of antennae 

 and in the inflated pera^on, which last character, however, is much more exaggerated 

 here than in the representatives of those families. The last tive pairs of j^erajopoda 

 are remarkably like those pairs of the true Hyperidce, showing that, how stränge the 

 appearance of Mimonectes may be, it, however, has a close connection with the typical 

 family of the tribe. 



A. The sphiErical portion of the body is foi-med of the head and the first iive 



perajonal segments. The metacarpus of the first two pairs of persopoda is 



almost conical, hirsute . 1. 1. LoTeiii. 



B. The sphajrical portion of the body is formed of the head and the first six pe- 



rjconal segments. The metacarpus of the first two pairs of perseopoda is 



provided with a spinulous prominence on the hinder margin, not hirsute 3. H. sphaericus, 



C. The sphserical portion of the body is formed of the head and all the perteonal 



segments. The metacarpus of the first two pairs of persopoda is cylindrical, 



armed with long spines..._ _ _ _.. 3. B. Steenstrupi. 



\. MIMONECTES LOVÉNI, C. BOVALLIUS, 1885. 



Diagn. Caput dimidio diametri sphara; altius. Articulus primus flagelli antennarum primi paris pe- 

 dunculo plus quam duplo longior, crassus, serratus. Segmenta quinque prima perai 

 sphseram formantia. Metacarpus peduni perad primi et secundi parium fere conicus, hirsutus. 

 Pedes tertii paris tertiam partem diametri sphferse lougitudine fequantes. Telson pedunculo 

 pedum uri ultimi paris multo angustius, et plus quam duplo brevius. 



The head is higher than half the diameter of the globe. The first joint of the flagellum of 

 the first pair of antenna' is more than twice as long as the peduncle, thick, serrated. The 

 first five segments of the pera'on form the globe. The metacarpus of the first two pairs 

 of perceopoda is almost conical, hirsute. The third pair equal a third of the length of 

 the diameter of the globe. The telson is much narrower than the peduncle of the last 

 pair of uropoda, and shorter than half the peduncle. 



