336 



GUI. TS Danielssenia, Hn.-rk. 1*7;*. 



Sn: ./..//,W/./. l',ra<l\. isso. 



Generic < 'luii-m-t, />. Bod\ more or less fusiform in shape, with no sharp 



demarcation between the ~2 divisions. Rostrum well defined behind, forming a 

 very thin and hyaline plate, (-Jenital segment in female imperfectly subdivided. 

 Caudal rami. as a rule, rather short. Eye well developed. Anterior antennae 

 very small, with the number of joints much reduced, some of the setae very strong 

 and coarseh spinulose; those in male strongly hinged, sub-cheliform. Posterior 

 antenna' with the proximal joint not subdivided: outer minus well developed. 

 3-artieulate. Oral parts on the whole built on the same type as in the other 

 genera, of the present family. Natatory legs coarsely spinulose, with the rami 

 comparatively narrow and provided at the tip with coarse spiniform seta?; 1st 

 pair differing from the others in the fact that the inner ramus is composed of only 

 2 joints. Inner ramus of 2nd pair of legs in male conspicuously transformed. 

 Last pair of legs with the distal joint well defined, inner expansion of proximal 

 joint in female lingiiiformlv produced. 



It' ///"//>. This genus was established by Boeck as early as the year 

 IsT.'l. but was rather imperfectly characterised. The genus ./mn'tirUtt of Brady 

 i- undoubtedly identical with Boeck's genus, and this name ought of course to be 

 replaced by that proposed b\ Boeck. Prof. Brady placed this genus within his 

 sub-family . s '/c .'/ln/i/iin : but I think that such an arrangement cannot properly be 

 defended, as it- altinih to the : other genera included by Brady in that sub-family 

 is in reality a very remote one. On the other hand, the several appendages 

 are built, upon the whole, upon the type characteristic of the present family. 

 In addition to the '2 species described helou, a .'ird well-defined species (I). >//</- 

 i-inii has been characterised and figured by the present author, and a 4th species 

 //>. r>i'i-<n has been recorded by Th. Scott from the coast of Novaja Sembla. 

 The form at first described by Th. Scott as .Imn^ii'/lii hi/tfnn- has. on the other 

 hand, recently been raised by that author to the type of a distinct genus 

 Thompsonula. 



i'ir>. Danielssenia typiea, r.oeck. 

 d'i. i \\nii 



/'/// /SM '-/ iif/iii-n. !;... i.. s\. si.i- L .ii-r og . \ri.-r nt' Baltvandscopepoder. ciir. Vi<l. Scisk. Km-ii. 



f. |s7-_'. p. 55. 



s'\ i, 



S/./n/ir Chm-tirl, !*.- h'<ni'i/i. I'.odv cmnparatively short, slightly depressed 

 in its anterior part, and e\eiil\ contracted both in front and behind. ' 'ephalic 



