BKACHYUKA. 407 



flagellum and in the longitudinally oblique fold of the antennules. The latter 

 characters and the general Kraus$ia-\\ke shape of the carapace suggest Cancrid 

 affinities. It may possibly* fall into the sub-family ( 'hlorodina? (A. 3, p. 78); but it 

 does not agree with any of the three Alliances into which Alcock divides the sub- 

 family, but the obliquely folding antennules of Cymo are to be remembered. From 

 Cymo, however, the new genus presents many points of difference. 



Calmania prima, n. sp. Plate I., fig. 12, a < . 



Locality : Gulf of Manaar, one specimen. 



Description: A female, non-ovigerous, but quite probably adult. 



C.L = 7*0; Cl.-J-C.b. =0*93; the only region distinctly indicated is the cardiac, 

 which is delimited anteriorly and antero-laterally by a well-marked groove ; a fainter 

 groove completes the isolation of the branchial regions anteriorly, a groove runs back 

 in the middle line from the notch between the frontal lobes. There are four tufts of 

 hair on the dorsal surface of the carapace, one on each side of the gastric region and 

 one behind and to outer side of each of these. The antero-lateral border of the 

 carapace is sharpened, almost cristate, and has three slight teeth behind the external 

 orbital angle, which faintly indicate a division into four lobes. 



Front o-orbital b.-i-C.b. = 071 ; frontal b.-r-Gb. = 0-4f>. For further description of 

 front see generic description ; it is fringed by long silky hairs. 



The folded antennule makes an angle of 40 approximately with a perpendicular 

 line. The antennal flagellum is slender and naked. Ant.flag.l. -=-0.1. = 0'25, approx. 



For external maxillipeds, see description of genus. The ischia do not quite meet. 



Oi.l. H-CU. = 122; the massive hand and fingers are remarkable; the fingers are 

 bent on the hand somewhat as in Lambrus ; when closed, the distal halves of the 

 fingers meet, but between the proximal halves there is a rounded gap left ; the distal 

 apposable part of both fingers is dentate. The inner surface of the hand is smooth 

 and polished ; the outer surface of hand and fingers is richly sculptured ; both above 

 and below an intermediate region of outer surface of hand is a groove bordered on 

 both edges by a granular line. On the upper border of the wrist is a row of granules. 

 The sculpture of the hand and fingers is hidden a good deal by hair ; long silky hairs 

 are found also on the upper border of the hand, and a tuft on the outer surface of 

 the wrist. 



The walking legs are of approximately equal length, 2nd walking leg 1. -- C.l. 1 '20 ; 

 they are a little compressed laterally ; their surface is smooth and glazed ; their 

 borders are fringed with silky hair. 



Ozius rugulosus, Stimpson, 1858 A.3, p. 182. 

 Locality : Galle, one specimen (adult ? ). 



Ozius tuberculosus, H. M.-Edw., 1834 A.3, p. 183. 

 Locality : -Trincomalee, one specimen. 



