G. 0. SARS. [SEC. ARC. EXP. FRAM 



Fain. Diosaccidae. 



104. Amphiascus nasutus. BOECK. 



Tin- form occurred rather abundantly in several of the bottles. 



105. Ainp/u'uscus latifolius, G. 0. SARS, n. sp. 



(PI. VII). 



Specific Character-. Female. Body moderately slender 



and slightly tapering behind, with the anterior division oblong oval in 

 form. Cephalic segment, excluding the rostrum, about the length <>l 

 tin- 3 succeeding segments combined; rostrum well developed, lanceolate. 

 Urosome somewhat shorter than the anterior division, last segment 

 comparatively short, scarcely half as long as the preceding one. Caudal 

 mini broader than they are long, and transversely truncated at the tip. 

 inner medial seta conspicuously dilated for some part of its length, 

 and about as long as the urosome. Anterior antenna; of moderate 

 length and consisting of 9 well-defined articulations, the first four gra- 

 dually diminishing in size, terminal part about half the length of the 

 proximal one. Posterior antennte and oral parts of the usual structure. 

 I -I pair of leg* with both rarni pronouncedly prehensile and rather 

 slender, the outer one fully as long as the 1st joint of the inner, last 

 joint very short, spatnlate in form, and armed with 3 strong claws gra- 

 dually increa.sing in length distally and accompanied outside by a thin 

 bristle, inside by a slender geniculate seta; inner ramus with the 1-t 

 joint linear in form and having inside, at a short distance from the end. 

 ;i comparatively short seta, outer 2 joints very short and subequal in 

 -i/.e, the last one armed with 2 slender claws of unequal length. Nata- 

 tory legs well developed, with the full number of seta?. Last pair of 

 legs comparatively large and pronouncedly foliaceous, distal joint of 

 nim-iial si/.e. rounded quadrangular in form, and provided with 6 rather 

 -lender seta3, one of them, issuing from the tip. very thin, hair-like: 

 inner expansion of proximal joint triangular and extending about to the 

 middle of the distal joint, marginal setae 5 in number, the 2 outermost 

 do.M-'ly juxtaposed. Ovisacs of moderate size and oblong oval in form. 



Male with the anterior antennae hinged in the usual manner. 

 IIIIHT ramus of 2nd pair of legs conspicuously transformed, but rather 

 unlike that in the other known >pecies, middle joint faintly defined from 

 the la-l. and without any spiniform appendage outside, last joint pro- 

 vided ;il the lip with a short spine and a slender sela, having more- 

 over m-ide an ordinary -da, and outside near the end a short, peculiarly 



