220 CEYLON PEARL OYSTER REPORT. 



Dana's description and figure, and the tarsus of the walking legs is very noticeably 

 two-clawed. This is a new record for Ceylon. 



Polyonyx obesulus (White). (See Miers, 12.) 



Locality : Cheval Paar, Gulf of Manaar, shallow water. One specimen ; carapace 

 measuring 1 centim. This is a new record for Ceylon. 



This and the last species seem so closely related that it is difficult to believe 

 that they are distinct. Some of our Ceylon specimens seem intermediate in their 

 characters. 



Pachycheles pulchellus (Haswell). (See Miers, 12.) 



Localities : (l) Cheval Paar and other pearl banks, Gulf of Manaar, shallow water, 

 nine specimens; (2) South of Modragam Paar, Station LXIV., 4 to 5 fathoms, one 

 specimen. 



Carapace of largest measured 9 millims. In these specimens the penultimate joints 

 of the walking legs bear a few hairs on their external surface, and there is a little 

 variation in the size of the crest on the carpus of the chelipedes. 



This is a new record for the Indian Ocean, having only been found previously off 

 the coasts of Australia. 



Family : GAL ATHE I DM. 



Galathea elegans, White. (See Haswell, 6.) 



Locality: Chilaw Paar, 8 miles from shore, Station V., 9 to 11 fathoms. One 

 specimen; extreme length 1*9 centims. 



Galathea longirostris, Dana (4). 



Localities: (L) North of Cheval, Station LIIL, 7 to 9 fathoms; (2) Gulf of 

 Manaar, shallow water. Three specimens ; extreme length 2 centims. Colour 

 markings well defined. Brought up adhering to specimens of Antedon bell a. This 

 is a new record for the Indian Ocean. 



Galathea corallicola, Haswell (6). 



Localities: (I) South of Galle, Station XLL, 100 fathoms; (2) off Kaltura, 

 Station XLIIL, 22 fathoms; (3) coral reefs, Gulf of Manaar, shallow water. Six 

 specimens in all ; carapace of largest measuring 9 millims. This is a new record for 

 the Indian Ocean. 



Galathea australiensis, Stimpson. (See Haswell, 6.) 



Localities: (1) South of Galle, Station XLL, 100 fathoms; (2) off Kaltura, 

 Station XLIIL, 22 fathoms; (3) Gulf of Manaar, shallow water. In all, five males 

 and two females bearing eggs ; carapace of largest measured 1 centim. 



