I',!' 



!".'>. Amphiascus parvus, u. <>. Sars. n. sp. 



ii-i. in. 



S/nn/ir Characters. Female. Body modcrateK slender, sublinear in form, 

 with tlir anterior division not inucli broader tlian the posterior. Ixostrum o| 

 moderate si/.c and (if tin- usual ibrm. Caudal ranii very short, much broader 

 than thc\ are long, middle apical -et;e slightly thickened at the base. Anterior 

 antenna' somewhat Less -lender than in the preceding species. Ith joint only little 

 longer than .'!rd. terminal part not attaining half the length of the proximal one. 

 1'oMcrior antenna' \vith the miter ramiis ^Imrter than the terminal joint of the 

 inner. its middle joint \ery small and without an\ seta. 1st pair of legs with 

 tin- outer ramiis extending but little beyond the middle of the 1st joint of the 

 inner, its middle joint of about the same si/.e as the 1st, and having no seta inside, 

 last joint somewhat smaller and armed with 3 strong spines and 2 geniculated 

 seta-: 1st joint of inner minus very slender, straight, being almost 4 times as 

 lon:{ as the other '2 combined, last joint not much longer than the 2nd, apical 

 daw of moderate length and almost straight. Natatory legs rather slender, ter- 

 minal joint of outer rainus in the 2nd and .'jrd pairs with only a single seta 

 inside. Last pair of legs with the distal joint broadly ovate in form and car- 

 rying 6 marginal setae, the 2 apical ones very slender and quite smooth; inner 

 expansion of proximal joint comparatively short, triangular, not extending to tin- 

 middle of the distal joint. Ovisacs of moderate size, and containing a limited 

 number of rather large ova. 



Colour not yet ascertained. 



Length of adult female <).4<i mm. 



li'i nitii'l,'*. This new species somewhat resembles in its general appear- 

 ance A. Hiniittii*. but is of much smaller si/.e. and may nioreo\er be distinguished 

 by the less slender anterior anteniue and by the structure of the le--. 



Occurrence.- Some few female specimen^ of this form were selected from 



samples taken last summer oil the south coast of Norway, at K'isor and Lilh-sand. 



hii. Amphiascus debilis (Giesbr.). 



in. \civi. 



I till llflii/ill-, il, lulls. ( ', ji -I.I rc||l. |>jr |'|vili'l>rl|i|f|| ( ' '|"'|'< ulc'll il'T Kil'llT I 1 '. .| I I'l 1 1 ' . |l. I L'J (lIUIIM'l 



n: />in/i//iijiiis 



S/,,ci/i<- ( 'Itni'iii-li />. /''linn//. Hotly moderately slender, sublinear in form. 

 alino>| of uniform width throughout. li'ostnim rather prominent, cttnically 



