BY F. E. GRANT. 313 



Suborder BRACHYUKA. 



Tribe OXYRHYNCHA. 



Legion MAIINEA. 



Family MAIID^. 



Subfamily PISIN^. 



Alliance Pisoida. 



Hyastenus White. 



Hyastenus Fultoni, sp.nov. PL xi. fig.l. 



Carapace elongate-triangular, rounded behind, covered every- 

 where both dorsally and ventrally with a short and scant pubes- 

 cence, beneath which the surface is smooth and polished. The 

 legs carry a similar but shorter pubescence with the exception 

 of the tips of the dactyli, which are naked. 



The regions are ill defined. 



The gastric region is swollen, and on the median line of the 

 carapace there are (1) a low tubercle on the posterior margin of 

 the gastric swelling; (2) a more prominent tubercle about half 

 way between it and the posterior margin; and (3) a prominent 

 horizontally directed spinule on the rounded posterior margin. 



The rostrum consists of two slender, somewhat widely divergent 

 spines, which are slightly less than one-third the total length of 

 the carapace. 



The supraocular eaves are scarcely so prominent as in most 

 members of the genus, and are pointed anteriorly. The post- 

 ocular lobes are prominent, but do not reach beyond the eyes. 

 Their anterior border is excavated, but the eyes are not so far 

 retractile against it as to render the cornea invisible when 

 viewed from above. 



Behind the supraocular eaves, and separated from them by a 

 short concave interval, there is on either side a somewhat more 

 prominent outwardly directed and sharply pointed spinule. 



