of the '■Challenger'' Expedition. 417 



these being finelj granulated. The rostrum is flattened and 

 spiniform, Avith the apex bidentate, the upper point turned up 

 and blunt, the lower broad and flattened. Chelipedes and 

 ambulatory limbs tuberculate, the tarsi short and curved, with- 

 out teeth on the lower border. Second and third abdominal 

 segments tuberculate, and each with a prominent dorsal 

 projection. 



Length of body (of a ? with ova) 28 millim. ; length of 

 chelipedes 27 millim. 



Zoc.-Sta4io«J.-07-[©ff the coast of Brazil], 1500 fathoms; 

 station 311 [Straits of Magellan], 245 fathoms. 



Galathopsts, n. subgen. 

 The characters of this proposed new subgenus are some- 

 what intermediate between those of Munidopsis and Elasmo- 

 notus. The rostrum is triangular, flattened, and simple, 

 resembling that of Diptychus. The carapace is swollen and 

 without spines or ridges^ the orbito-antennal border short and 

 nearly horizontal. The eye-stalks are freely movable and 

 without spines, the cornese being pigmentless. The limbs 

 are short and robust. It is distinguished from Munidopsis 

 by the form of the rostrum and by the absence of spines on 

 the surface of the carapace ; while it differs from Elasmonotus 

 chiefly in the form of the carapace, which in the latter genus 

 is usually depressed. 



Galathopsis loevigata, n. sp, 



Rostrum long and acute. Carapace glabrous, sparingly 

 clothed with fine hairs ; the orbito-antennal border with a 

 prominent spine behind the eye, also two on the lateral 

 border near its junction with the former. Chelipedes robust, 

 clothed with delicate hairs and almost obsolete polished 

 tubercles ; the digits spoon-shaped. Ambulatory limbs 

 robust and hairy, with polished scales ; the meral joints pro- 

 longed into a spine at the upper and outer border, the tarsi 

 strongly toothed. Internal antennae very short, the basal 

 joint stout and spiny. Merus of the external maxillipedes 

 short and broad, witli two well-marked spines on the inner 

 border. Abdominal segments smooth, the second, third, and 

 fourth faintly carinate. 



Length of body (of a ? with ova) 33 millim. ; length of 

 chelipedes 18 millim. 



Loc. Station 219 [off the Admiralty Islands], 150 fathoms. 



Galathopsis dehilis^ n. sp. 

 Allied to the last, but the carapace is minutely punctate 

 Ann, & Mag, N. Hist. Ser. 5. Vol. xvi. 29 



