546 



and rather densely setiferous, basal joint in female oblong oval, in male 

 angularly produced posteriorly, below the middle. Last pair of uropoda with 

 the rami eqiial-sized, and nearly twice as long as the basal part, each having 

 a few lateral spines and an apicial fascicle of somewhat more slender spinules. 

 Telson rounded, nearly as broad as it is long, tip obtusely angular, with 2 

 unequal spines on either side. Body whitish, more or less densely mottled 

 with brownish pigmentary sjjots. Length of adult female attaining 8 mm, 

 of male about the same. 



Eemarks. — This form was iirst described (in the male sex) by 

 Sp. Bate as LoncJwmeres gracilis, and was subsequently referred by that 

 author to the genus Lalaria of Nicolet. In his more recent works he records 

 it under the name here used. The Autonoe punctata of Bruzelius is undoubtedly 

 identical with the present species. From the tj^e species, Aora typica oi 

 Kroyer, it would seem to difFer by the much more slender form of its body. 

 In the male sex, this form is easily recognizable by the peculiar structure o\ 

 the anterior gnathofioda. The female is, on the other hand, very like the 

 females of the genera Microdeutopus and Autonoe, and cannot therefore, without 

 30 fathoms. It a closer examination, be distingui.shed from them. 



Occurrence. ■ — Along the whole south and west coasts of Norway, thii- 

 form is rather frequently met with in moderate depths, varying from 3 tc 

 also occurs in the Trondhjemsfjord. 



Distribution. — British Isles (Sp. Bate), Bohuslan (Bruzelius), Kattegat 

 Meinert), Dutch coast (Hoek), coast of France (Chevreux), Azores (Chevreux) 



Gen. 3. Autonoe, Bruzelius, 1859. 



Syn: Lembos, Sp. Bate (part). 

 > Microdeutopus, Sp. Bate (part). 



Form of body about as in the 2 preceding genera. Coxal plates rathe; 

 small, 1st pair more or less produced in the male. Eyes distinct, or imper 

 fectly developed. Superior antennae longer than the inferior, and providet 

 with a well-developed accessory appendage. Oral parts scarcely differing 

 from those in the 2 preceding genera. Gnathopoda rather unequal, th( 

 anterior ones being considerably stronger than the posterior, and in malt 

 very powerfully developed, with the carpus rather thick, though not producec 

 in front, propodos ftilly as broad as the carpus, and having the palm dividec 

 into .spiniform projections. Both pairs of gnathopoda in male, (sometimes als( 

 the 1st pair of pereiopoda), clothed, especially along the anterior edge, witl 



