MiMONECTES, A REMARKABLE GENUS OF AmPHIPODA HyPERIDEA. 3 



The specimens examined liave been distributed into three new 

 species, easily distinguished from one another, as shown by the follow- 

 ing diagram. 



5 first pereional segments. 1. M. Lovéni, n. sp. The third pair of 



pereiopoda only a little shorter than 

 half the diameter of the globe. 



The sphœrical portion of the body 

 is formed by the head and the . . 



6 first pereional segments. 2. M. spliarims, n. sp. The third pair 



of pereiopoda as long as one fourth 

 of the diameter of the globe. 



all the pereional segments. 3. M. Steenstrupii, n. sp. The third pair 



of pereiopoda as long as one eighth 

 of the diameter of the globe. 



For the more detailed description I have chosen Mimonectes 

 Lovéni, because I have some larger specimens of it at my disposal. 



1. Mimonectes Lovéni, n. sp. 



The name in honour of Professor Sven Loven. 



Diagn. Sphcera segmentis quinque primis pereii formata. 

 Caput quater fere altius quam longiiLS. 

 Antennœ supeiiores capite longiores, marginibus serratLs. 

 Antennœ inferio?~es rV-articiüatse. 

 Segmenta sextimi et septimum pereii non infläta. 



Pedes pereii tertii paris dimiclium fere diametri sphœrœ longitudine sequantes. 

 Pedes uri primi paris pedes secundi paris non seqvantes. 



The fflobe is formed by the head and the five first pereional 

 segments. 



The head is nearly four times higher than long. 



The upper antennœ are longer than the head, their margins are 

 serrated. 



The lower antennœ are four-jointed. 



The sixth and seventh pereional segments are comparatively com- 

 pressed, not inflated. 



The third pair of pereiopoda are nearly as long as half the dia- 

 meter of the globe. 



The first pair of uropoda do not reach to the end of the second pair. 



The most striking characteristic of the animal is that which cha- 

 racterises the whole genus, viz. the enormous development of the head 



