158 



inner, middle joint about the length of the 1st. terminal joint a little longer and 

 armed with I spines and a slender geniculated seta inside them ; inner ramus with 

 tlie 1st joint not much longer than the other 2 combined, last joint linear in form 



and t \\ice as long as the L'nd. carrying a slender claw, a somewhat longer seta, 

 and a -mall hair-like bristle. Natatory legs resembling in structure those in .1. 

 imus; middle joint of inner ramus in .'!rd pair of legs. ho\\ever. like that in i^nd 

 pair, with L ; seta' inside. Last pair of legs with the distal joint oblong oval in 

 form, carrying H marginal setse, .') outside, one inside, and ~2 very slender ones 

 at the tip: inner expansion of proximal joint narrow triangular in form and ex- 

 tending almost as far as the distal joint, marginal setie 5 in number. Ovisacs 

 less narrow than in A. nun.--. 



('lour light yellowish grey. 



Length of adult female 1.1G mm. 



lit iniif/,:--. The above-described form is unquestionably that recorded by 

 |r. (iiesbrecht as Sliiiluim iiihi. It is. however, most certainly distinct from 

 I'.radv's species, differing, as it does, both in si/e and in several of the anatomi- 

 cal details. ( )m- character which distinguishes the present species in a marked 

 (b'gree. and \\hidi is well described by \h'. Griesbrecht, is the peculiar bag-like 

 dilatation nf the largest of the caudal seta;, a feature which ensures the immediate 

 recognition of this species from any of the others known. 



Occurrence. -Only a solitary, but well preserved female specimen of this 

 form lias hitherto come under my notice. It was taken many years ago oil' the 

 \\est coast of Norway, the exact locality not being stated. 1 ) 



l)'i>i,-il>tii'inn.- -Ray of Kiel (Giesbrecht). 



K"i. Amphiascus propinqvus, (4. o. Sars. n. sp. 



(PL \c|\). 



N//.7-///V Clnii-iirli /.-. l'\ mull. l>ody moderately slender and only slightly 

 attenuated behind. ('ephalic segment about the length of the 4 succeeding seg- 

 ment- eombined: rostrum well de\eloped. lanceolate, extending nearly to the end 

 of the L'nd joint of the anterior antenna'. I rosonie almost attaining the length 

 of the anterior division, last segment fully as long as the preceding one. Caudal 

 rami short, i|iiadrani:iilar. broader than they are Ion-, the -J middle apical seta' 

 only slightl\ dilat.'d at the base. Anterior antenna' slender and attenuated. 

 s-articulate. the first 'J joints much the largest. Ith joint nearly twice as long as 



tins <iinilii< ,-iii;lllv ill l''li-kk<T"i. si. nlli c.in^t ..I' N'..r\v:i\. 



