HRACHYURA. 351 



A.Cat. = AxcOCK, < 'at. Ind. Decap. < 'rust. Tnrl. Mus.' Part T. Brachyura. Fasc. 1. 

 Dromiacea, 1901. 



A. Invest. = ALCOCK, " Crust." in ' lllusts. Zool. " Investigator." : 



B.I.-B.XIII. = Borbadaile's < Irust. in Gardiner's ' Fauna, &c, Maid, and Lace' 



N. = Nobili, 'Bull. Sci. France et Belg.,' vol. xl., 1906. 



K. = Klunzinger, 'Spitz- u. Spitzmund-Krabben d. Rothen Meeres.' Stuttgart, 1906. 



C. = CALMAN, ' Trans. Linn. Soc.,' ser. 2, Zool., vol. viii., 1900. 



H. = Henderson, 'Trans. Linn. Soc.,' ser. 2, Zool., vol. v., 1893. 



R. = Rathbun, ' Bull. U.S. Fish. Comm. for 1903.' 



My thanks are due in the first instance to Professor Herdman for entrusting to my 

 examination this large and interesting collection. Much of the work has been done 

 at the British Museum, and my indehtedness is great to Dr. Calman for the courtesy 

 and kindness with which he has facilitated my work among the collections under his 

 charge. Finally, I thank Miss Woodward for her excellent drawings and Mr. H. 

 Herring and Mr. W. J. Dakin for valuable photographic aid. 



DESCRIPTION OF THE SPECIES. 



DROMIACEA. 



Droinia intermedia, n. sp. 



Locality : Deep water off Galle, one specimen. 



Description : Female, non-ovigerous, hut quite possibly mature. 



C.l. 23 '50, including frontal teeth. 



C.b.i 23 "50, straight line uniting tips of last pair of antero-lateral teeth. 



Cb. 3 23 '00, straight line uniting tips of teeth immediately behind cervical groove. 



W.L.2.1. 27 '25, sum of dorsal borders of (1) meropodite and (2) the three distal 

 segments together (9'0 + 18'25). W.L.3.1. 14-00 (5'5 + 8'5). W.L.4.1. 16-00 (7'0 + 9'0). 



It agrees with Alcock's description (A. 5, p. 138 ; A.Cat., pi. ii., fig. 5) of Dromia 

 cranioides, de Man, except in two very obvious particulars, in which it resembles 

 Dromia rumphi, Fabricius, 1798 (A.5, p. 137; A.Cat., pi. ii., fig. 4), namely: 

 (I) Walking leg 4 hut little longer than walking leg 3 ; (2) the sternal grooves of 

 the female terminate on very prominent tubercles set well apart on anterior portion 

 of segment of walking leg 1. A third difference from D. cranioides is that the spine 

 on the distal end of the "posterior" border of the propodite of walking leg 4 is 

 slender and only about h length of "anterior" spine (i.e., the one opposing the 

 dactylopodite). There are on the same segment various smaller spinules. 



Dromidia unidentata (Ruppell), 1830 A.5, p. 139 ; A.Cat., pi. ii., fig. 6. 

 Locality : -West of Periya Paar, Station LXIIL, 17 to 24 fathoms, one specimen. 

 Description: -Ovigerous female, CI. = I L00; C.b. -5- C.l. = LOO. 



