I.S2 



CRUSTACEA MALACOSTRACA III. 



inien; Mag. R. Honing gathered 5 spec, in Faskruds Fjord, East Iceland, 50— 20 fath., and Dr. Th. Mor- 

 tensen captured 3 spec, off Nolso, the Faeroes, in ab. 100 fath. 



Distribution. According to Sars E. mutica has been taken in the inner part of the Christiania 

 Fjord and at many places along the coast of Norway, as far north as Bodo (about Lat. 67 1 /, N.). Sars 

 wrote: "It is not strictly a deep-water species, being often found in only a few fathoms' depth among 

 algae." At Denmark it has been taken in the northern part of the Sound, 14 fath.. in the southern 

 Kattegat, 15 fath., and in Skager Rak off the Skaw, 70 fath. (H. J. Hansen). Finally recorded from 

 the North Sea off Northumberland, 59 fath. (Norman) and from the Irish Sea near Isle of Man, 40 

 fath. (Tattersall). — The species is so small that it has probably been overlooked very frequently. 



Group XII. Munnopsini. 



Body rather oblong; anterior section of the thoracic segments, and especially third and fourth 

 segments, somewhat or most frequently very much broader than the posterior segments and abdomen. 

 — Head free; eyes wanting. Antennulse dorsal with first joint plate-shaped; the flagellum with many 

 joints. Antennae some or several times longer than the body, as the two distal joints of the peduncle 

 are extremely elongate; squama somewhat small, more or less distinct. Mandibles somewhat slender, 

 with the distal parts well developed or much reduced, the molar process either slender conical or 

 wanting; palp well developed or wanting. Maxillipeds normal; epipod rather oblong. — Thoracic seg- 

 ments divided into two sections; the four anterior segments movable, the three posterior either mov- 

 able or fused with each other and with the abdomen. First pair of legs very slender or moderately 

 strong, more or less prehensile, with second joint long; second pair differ from first pair only in being 

 thicker, much longer and with seventh joint long. Third and fourth pairs differ extremely from second 

 pair in having second and third joints short, and the enormous length of these legs is due to fifth 

 and sixth joints, which are extremely elongate. The three posterior pairs natatory, fifth and sixth 

 joints a little or much expanded with marginal setee ; seventh joint wanting. — Uropods terminal or 

 a little ventral, uniramous, slender. 



Remarks. This group differs from the Eurycopini in having uniramous uropods, no seventh 

 joint on the three pairs of natatory legs, and above all in second to fourth pairs of legs, as the second 

 pair are similar to the first and very different from third pair, which have not only the third but 

 above all the second joint short. 



Our knowledge of most of the forms of this group has hitherto been very poor, and it may 

 be useful to give a brief review. The only fully known species is Munnopsis typica M. Sars. Munnop- 

 sis Murrayi Walk. (= Munneurycope Tjalfiensis Steph.) has been wrongly referred by Walker and 

 Tattersall to Munnopsis, but it is, as shown above, a species of Eurycope. In 1895 I described Mun- 

 nopsis longicornis H. J. H. on a single mutilated male captured by the German Plankton-Expedition. 

 Stephensen (1913) quoted the following statement from Walker: "As G. O. Sars has pointed out, Mun- 

 nopsis longicornis Hansen differs in the structure of the mandibles from the generic description, as 



