4D4 



division, and having tlir last segment smaller than tlie preceding one. Caudal 

 rami comparatively short, hrin- searrely longer than they arc broad, and of a 

 sonieuhat unusual form, each exhibiting dorsally a rectangular prominence, best 

 n in the lateral aspect of the animal: apical seta- slender, though scarcely as 

 luiiL- R8 in the preceding ^-pecies. Anterior antenna? slender and narrow, exceeding 

 in length thf cephalic segment, and. as in the preceding species, composed of 

 !i \vrll-drtiiicd joints. L'nd joint much the largest and snbfusiform in shape. :>rd joint 

 considerably longer than 4th. terminal part c.\cecding in length those two joints 

 eoinhiiied. Outer rainus of posterior antenna- resembling in shape that in the pre- 

 3, lieing distinctly Inarticulate, with the proximal joint conspicuously 

 dilated in the middle. Oial parts scarcely differing in structure from those in 

 that species. 1st pair of legs with the outer ramus a little shorter than the 1st 

 joint of the inner, the latter joint not quite twice as long as the other 2 combined. 

 The :; succeeding pairs of legs of same structure as in the other species of this 

 L'eniis. Last pair of legs with the distal joint oval conical in form, inner edge 

 huli:inL r considerably at the base, tip somewhat obliquely truncated and, as in tbe 

 preceding species, pro\ided with H seta 1 . 2 of which are hair-like ; inner expansion 

 of proximal joint not extending to the middle of the distal joint, and carrying on 

 the obtusely truncated extremity ."> spiniiorm seta-, the outermost one very short, 

 that sin-reeding it much the longest. 



i 'oloiir whitish, pellucid. 



L'-ngth of adult female <i.7<> mm. 



/,' //'///>. On account of a certain resemblance in the shape of the caudal 

 rami. I was at lir>t inclined to identify this form with Anicim {'.rilis of Scott, 

 a dosri- comparison, I 1'md however that such an identification is untenable. 



exilis is of much larger si/e, attaining, according to Scott, a length of 

 1.1" mm.: and the structure of both pairs of antenna 1 , mandibles and last pair 

 of h-L's seems also, according to the figures given by Th. Scott, to ditVer con- 

 -pii'iioiisly in these -2 forms. The specific name here proposed refers to th<- 

 'liar si,:,),,- o| the caudal rami. whereby the present species is at once recognised 



from ali\ of the others. 



urrence.- Some fe\\ specimens of tliis form wei'o found in the same 



iii \\hich the ]iivcedin<,' species occurred. 



Ameiropsis abbreviata, (-J. <. Sars. n. sp. 



(Suppl. I'l. 



Si>(r,(ir Characters. Female. l!ody unusually short and stout, sub- 

 ssed. \\ith all the segments sharply marked of! from each other. Cephalic 



I 



