126 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



GECARCINID^. 



Epigrapsus politus Heller. 



Epigrapsus politus Alcock, Journ. Asiatic Soc. Bengal, LXIX. 443, 1900, and 

 synonymy. 



Marco, Fadiffolu Atoll, at anchorage; one small male 7.8 mm. long and 

 9.5 mm. wide, in which the lateral tooth is faintly indicated. 



VAIAQIDM. 



Palicus jukesii (White). 



Palicus jukesii Alcock, Journ. Asiatic Soc. Bengal, LXIX. 451, 1900, and syn- 

 onymy. Calman, Trans. Linn. Soc. London (2), Zool., VIII. 29. pi. I. figs. 

 9-13, 1900. 



Hanimadu, Tiladummati Atoll, at anchorage, 16 fathoms, January 19 ; one 

 female with ova. 



Nallandu Island, Miladummadulu Atoll, at anchorage, 24 fathoms, January 

 18 ; one immature male. 



Palicus contractus, sp. nov. 



Figs. 7-8. 



Carapace wider anteriorly than posteriorly, and about as long as its width 

 measured between the bases of the third and fourth pairs of legs. 



Surface thrown into five transverse wrinkles ; the first depression runs directly 

 across the carapace just behind the orbits ; the second is the cervical suture ; 

 the third is parallel to, and not far from, the second, the fourth is behind the 

 cardiac region. There is a short deep longitudinal depression either side of the 

 mesogastric area. The surface is covered with scabrous granules which are 

 larger on the more elevated portions. 



Front cut into two broad rounded lobes. Antero-lateral border with three 

 teeth, including the orbital angle, the third rudimentary. Second tooth pro- 

 jecting laterally more than the first. Behind the second tooth, the margins 

 are sinuous and convergent. Posterior border raised, entire. 



Upper border of the orbit with two notches, the inner one the deeper ; 

 anterior margins of inner and outer orbital angles concave ; lower border with 

 two broad and deep notches. The end of the basal joint of the antenna forms 

 a large lobe visible in a dorsal view, either side of the front. There are three 

 lobules on the eye-stalk, and ij large bilobed one at the antero-external angle 



