166 AMPIIIPODA NOKMALIA. 



ciiii)us as long and broad as the propodos, both fringed along the 

 inferior margin with long hairs ; propodos ovate, palm not defined ; 

 daetylos not serrated on the inner margin. Second pair of gnatho- 

 poda hanng the caipus as long as, and stouter than the propodos, 

 furnished anteriorly with a verj^ considerable brush of long hairs ; 

 propodos long, cylindrical, sUghtly tapering at the point, fiinged 

 with a few hairs, palm not defined ; daetylos curved, short. The 

 rest of the animal differs but slightly from the preceding species. 

 The colour is corneous, generally passing into a grey along the 

 dorsal surface of the pereion. 

 Length -j^ths of an inch. 



Hah. Plymouth {Mr. H. Stewart and C. S. B.). 



6. Microdentopus longipes. 



Gftmmarus louffipes, Liljeborg, Of vers, af Kongl. Vet. Akad. Forhandl. 

 1852, p. 10;"1854, p. 457. 



<' Veiy much like M. anomahis. Eyes small, round, black. Superior 

 antennae much longer than the inferior ; fiagellum consisting of 

 about sixteen articuli, the secondary appendage of three or four ; 

 flagellum of the inferior antennte consisting of about six articuli. 

 Fii-st pail- of gnathopoda larger than the second, having the pro- 

 podos in the male ovate, furnished on the posterior margin near 

 the daetylos ■ft'ith two processes and an internal moveable spine ; 

 in the female nearly ovate, inferiorly obUqiie, truncate, and wanting 

 the processes on the posterior margin vrithin the moveable spine*. 

 Second pair of gnathopoda having the propodos in the male ovate, 

 with long hairs, thickly planted, chiefly anteriorly ; in the female 

 nearly rectangular, but not more than half as broad as the fii'st 

 pair. Thii-d pair of pereiopoda shorter than the rest ; fifth pair 

 much the longest, reaching far beyond the extremity of the pos- 

 terior pail- of pleopoda ; propodos longer than either of the other 

 joints. Eami of the posterior pair of pleopoda equal, pointed, 

 reaching nearly to the apex of the antepenultimate pair of pleopoda. 

 Telson single, t-abercular, short, truncate, having two conspicuom 

 spines situated posteriorly above. 



*' Length about 7 millims. 



" Hah. In the sea, at Kullaberg in Scania, taken from a depth of 

 from l-t to 16 fathoms." — Liljehorg. 



* " Maniis pedum thor. l"' paris iisdeni 2"*' paris majores, apud marem OTata>, 

 ad marginem posticum. imguem propius, processibus duobos et aculeo interno 

 mobili pi-ipdita, apud feininam fere ovat.T, inferne oblique, truncat;e. ct processibus 

 carentes ad margiuem posteriorem iutus aculeo mobili." — Liljeborg. I.e. 



