FA13ATUS. 155 



black, finely pilose, base of first joint pale ocbraceous ; bead with 

 tbe apical and lateral areas pale greyisb, basal margin transversely 

 linearly ocbraceous but centrally broken ; eyes castaneous brown, 

 tbeir basal margins dull ocbraceous ; pronotum with two discal 

 pale foveations, tlie upper margins of whicb, and a central more 

 or less connecting line, are black ; apical half of abdomen above 

 paler and more greyisb in hue, the .segmental margins darker ; 

 anal appendage blackish ; legs bluish, more or less greyisbl}' pilose, 

 the anterior legs beneath ochraceously pilose, the acetabula, abdo- 

 men beneath, and anal appendage more or less ocbraceous ; 

 structural characters as in creneric diagnosis. 



Length, c? 5, $ 5 to 5| millim. 



Hah. Andaman Sea {Indian Marine Survey., AhocJc). 



Genus PABATUS. 

 Fabatu?, Disf. A. M. N. 11. (8) v, p. 147 (1910). 



Type, F. servus, Dist. 



Distribution. Andaman Sea, 



Head large, declivous in front, subquadrate, obtusely apically 

 angulately produced and also distinctly angulate on each side 

 above the insertion of the antennae ; eyes of moderate size, 

 substylate, moderately emargiiiate at interior margins, a little 

 projecting beyond the anterior margin of the pronotum ; antennae 

 with the first joint longest, a little shorter than the anterior tibiae, 

 third shortest, second and fourth subequal in length ; rostrum 

 short, robust, not passing anterior coxae ; pronotum shorter than 

 head, transverse, the lateral margins moderately rounded, posterior 

 margin a little concave ; mesonotum elongate, convex, slighth' 

 more than twice the length of pronotum ; anterior legs slightly 

 thickened, more so in the male than in the female ; anterior tibi« 

 apically inwardly spinous and in tlie male with a strong, robust 

 spine near middle, in female unarmed ; intermediate and posterior 

 legs slender, intermediate considerably longer than tbe posterior ; 

 the intermediate tibiae very strongly curved ; intermediate tarsi 

 much longer than the posterior tarsi. 



The only known species of this genus in general appearance some- 

 what resembles the marine species represented by Ilalobates, but 

 differs by the emarginate inner margins of the eyes ; it is, however, 

 a truly marine species and I retain it in the Ilalobatinaria. I have 

 •as yet only seen undeveloped forms, collected by Lieut. -Col. Alcock 

 on the Indian Marine Survey. 



2929. Fabatus servus, Did. A. 31. X. II. (8) v, p. 147 (1910). 



Head ocbraceous with a broad central longitudinal spot and 

 a linear longitudinal spot on each side, black, the base greyish 

 white, the apex blackish ; eyes ocbraceous or brownish ocbraceous ; 

 antennae castaneous brown,' tbe base of first joint much paler, the 

 fourth joint darker ; pronotum greyish white, with a large 



