376 



72. Cryptodesmus concolor sp. n. PI. XXTI, fig. 14. 



Java: Tjibodas. One female specimen. 



Very closely allied to Cr. weberi , from which , however it may 

 be recognised by the following characters. 



On the upper surface of the somites the tubercles are larger and 

 more definitely arranged in rows. There are four rows of them instead 

 of five. Along the posterior border of the keels there are only five, 

 instead of seven, lobate teeth. The anterior angles of the keels are 

 less widely rounded. 



Length 11.5; width 2.7. 



73. Cryptodesmus sumatranus sp. n. PI. XXII, fig. 14. 



Sumatra: Manindjau. 



Closely allied to Cr. weberi and concolor ; but with the keels depressed 

 and following the slope of the dorsal surface. Moreover, the ornamentation 

 of the back is less distinctly tubercular, and takes the form of four 

 transverse series of quadrate areas, and the posterior borders of the 

 keels are much less distinctly toothed. 



In the cT the keels are slightly elevated and do not follow the 

 slope of the back. Copulatory feet as in figure. 



Length up to 15 mm.; width 4. 



Sub Order iuloidea, Pocock. 



To this suborder are referred the Stemmiulidœ '), the Lysiopetalidœ, 

 the Iulidœ etc., the latter, as has been suggested to me by Messrs. Cook 

 and Collins, being capable of much finer subdivision than has been 

 hitherto attempted. 



Family cambalid^. 



Cambala, Gray. 



For the synonymy and literature of this genus reference may be 

 made to my paper upon the Burmese Iulidse, Polyzonidse and Chor- 

 deumidge published in the Ann. Mus. Genov. XXXIII, p. 388, 1893. 



1) A new family for Stemmiulus Gervais, which on a previous occasion I referred to 

 the Lysiopetalidœ. The genus differs from Lysiopetalum in having the pleural sutures open 

 — a fact to which Mr. Cook first drew my attention — the gnathochilarium differently 

 constructed, the pedal laminae of a very different form etc. (See, however, Journ. Linn. 

 Soc. Zool. XXIV, pp. 447 etc.). 



