Dr. E. F. Kelaart on new species of Ceylonese Mollusca. 267 



rior extremity, passes from each side of the spinners to the under 

 part. The eyes are grouped on the cephalic convexity ; the four 

 anterior ones form a slightly curved transverse row, whose con- 

 vexity is directed upwards, and the two intermediate ones are 

 more distant from each other than from the lateral ones ; the 

 two posterior eyes are much the largest and darkest of the six ; 

 they are wide apart, and are situated behind the lateral eyes of 

 the anterior row, which are the smallest and lightest-coloured. 



Immature specimens of this species were discovered under 

 stones in the neighbourhood of Funchal. If the equal length 

 of the legs of this spider be a permanent character, and not 

 attributable to its immaturity, the genus (Ecobius, in this parti- 

 cular, will require to be amended. 



XXVII. — On some additional Species of Nudibr uncinate Mollusks 

 from Ceylon. By E. F. Kelaart, M.D. 



Doris Elizabethina, Kel. 



Body half an inch long. Mantle broad, spotted with purple on 

 the back; margin white, spotted with large light-blue spots. 

 A row of crimson spots between the line of blue spots and 

 the purple-coloured back. Under surface of mantle whitish, 

 with a pink shade. Tentacles purplish brown, white-tipped, 

 laminated. Branchiae six, small, bipinnated, of a grizzled 

 grey colour. Foot whitish, upper surface crimson. Mouth 

 with a small veil. 



This elegantly-coloured Doris was obtained in deep water near 

 the Pearl Banks of Aripo. I have named it in compliment to 

 one who takes more than an ordinary interest in my zoological 

 pursuits. 



Doris Diardi, Kel. 



Small. Body ^rd of an inch long, spotted with blue. Mantle 

 spotted with blue and white ; margin lined with larger blue 

 spots ; under parts blue. Dorsal tentacles red, clavate, lami- 

 nated. Branchiae eight, short, pinnated ; white, with a red 

 margin. Foot blue; upper surface spotted with blue. Mouth 

 surrounded by a bilobated veil. 



This very rare species was obtained by M. Diard of Java, 

 during his late visit to the Pearl Banks of Aripo. He found it 

 on a pearl-oyster shell from the Modregam Bank. I have named 

 it in compliment to the able and distinguished discoverer (the 

 pupil and friend of Cuvier and Lamarck), who was recently 

 engaged in researches in Ceylon. 



