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 sHghtly 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 Nudibranchiate 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 Jrd 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. 



