NO. 2135. NEW PHILIPPINE CRABS— RATH BUN. 537 



Differs from P. nodulosa Dana ^ in having the antero4ateral wing 

 of the carapace much larger, the rostrum smaller, basal antennal 

 segment narrower, legs wider and more strikingly toothed, especially 

 the carious. 



ANTILIBINIA GILLOLOENSIS, new species. 



Type-locality. — Between Gillolo and Makyan Islands: Malr^an 

 Island (S.), N. 67° W., 8.9 miles; lat. 0° 12' 15" N.; long. 127° 

 29' 30" E.; 288 fathoms; fne. S. M.; November 29, 1909; station 

 5624, Albatross. 



Holotype.— Male. Cat. No. 48205, U.S.N.M. 



Measurements. — Length of carapace in median line, 12.8; width 

 of carapace, 10.3 ; length of rostrum, 1 ; length of cheliped, 22 ; hand, 

 length above, 5,3 ; width, 4.7 ; length of dactylus, 5.3 ; length of first 

 leg, 20.4; of second, 19.2; of third, 17; of fourth, 14. 



The surface, except of the chel*, is closely covered with a short 

 spherical pubescence, among which are thinly scattered, longish, thin 

 hairs. Carapace swollen, regions plainly indicated and nearly 

 smooth; branchial region with a furrow parallel to the posterior 

 margin and two subdivisions along its inner margin. Rostrum cut 

 "more than halfway to its base, sinus V-shaped, horns longer than 

 wide, acute, outer margin convex, inner margin a little concave. Pre- 

 orbital hood projecting sideways a little beyond basal antennal seg- 

 ment, and ending anteriorly in an acute tooth whose outer margin 

 is longitudinal, anterior margin oblique. Postocular tooth conical, 

 blunt-pointed, directed forward and slightly outward. Hepatic 

 tooth much smaller, acute, higher up on the carapace. No branchial 

 teeth. A band of tubercles and granules on the pterygostomian and 

 subbranchial regions. 



Eye almost immovable, large at its base, but the part dorsally 

 visible is small, not so produced laterally as the postocular tooth; 

 cornea light brown in alcohol. Basal antennal segment anteriorly 

 narrowed and longitudinally furrowed; a small, sharp, antero- 

 lateral tooth is visible dorsally in front of the preorbital tooth. The 

 first movable segment is longer and much stouter than the next one, 

 Avhich reaches less than half its length beyond the rostrum. 



The buccal cavity is shaped much as in ^1. smithll M'Leay,- but 

 the long joint of the exognath is anteriorly acuminate, the merus 

 of the endognath is obliquely produced in a rounded lobe, and the 

 sinus at the inner angle is more rectangular. 



Eight cheliped (only one present) stout; merus triangular in 

 cross-section, upper margin bearing a small terminal tooth and on 

 its proximal half two tubercles; lower outer margin with two very 



1 Crust. U. S. Expl. Exped., 18r)2, p. l.'il ; atlas, 1855, pi. 5, figs. 8a, 8Z). 

 = Sco Krauss, Siiclafrik. Cmst., 184:;, pi. 3, fig. 4. 



