_56 



i, places, hy hea\y storms or excessively high tides, are exposed to some .ad- 

 mixture ! salt \\ater. 



/i,.ti-ilmti"n. British Isles (Brady), coasts of Sweden (Lilljeborg), France 

 IU), Madeira ( Kischeri. Kernm-h-n Mauds (Brady). 



Cm. 15. ZaUS, Goodsir, 1845. 



Generic Characters. Pody short and broad, flattened, with the segments 

 of tin- anterior division lainellarly expanded laterally. Rostral plate broad, sub- 

 trnncate at the tip. Lust pedigerous segment very small, without any distinct 

 epimeral plates. I'rosome narrower than the anterior division, though having the 

 anterior segments somewhat expanded laterally; genital segment in female with 

 distinct traces ot' a subdivision. Caudal rami short, with the normal number of 



e. Anterior antenna- in female 9-articulate, terminal part comparatively short; 

 those in male strongly prehensile. Posterior antennae well developed, with the 

 -pines of the terminal joint in most cases densely fringed with cilia on the one 

 due; outer ranuis comparatively small, Inarticulate. Oral parts on the whole 

 re-. -milling in structure those in I/ariHtrfintx: posterior maxillipeds, however, 

 comparatively smaller. First pair of legs, as in Htiri>tirt'-nx. with both rami 

 distinctly prehensile and of very unequal length, the outer one being much the 

 longer and biartieulate, tipped by a number of strong claws. The 3 succeeding 

 pairs rathei- --lender, and of exactly same structure in the two sexes. Last pair 



of le^s i e or less extended laterally, distal joint comparatively large, inner 



expansion of proximal joint in female very broad, though not much prominent, 

 in male rudimentary. <>\isa<- broad, flattened. 



/,'< inn,/,-. -This -einis, established as early as the year 1845 by Goodsir, 

 has h\ most ant hoi's been referred to the family I'dli/lmlir, on account of the 

 broad flattened body. The several appendages, however, are built upon the very 

 same t\pe as in the ^r-nus /l<ti-j>ir/<-n*, and the present genus ought therefore 

 more properly to be included in the family //or/xii-lii-iiltc as here defined. It may 

 be noted hen-, that one of the characters assigned to this genus by Prof. Brady, 

 "head distinct from cephalothorax" does not hold stand. The head is in 

 n-alit\. a- in most other I larpacticoids, wholly united with the 1st pedigerous 



fluent; nor is the outer minus of the 1st pair of legs, as indicated by that 

 author, .''.-articulate, but like that in Hiifjinrt/r/i*. only composed of 2 joints. 



