18 Mr. L. B. Prout on new 



alive, turns light pink in alcohol. There are three kinds of 

 spicules : — (1) Megasderes, usually strongyloxeas, but with 

 the oxeate ends often rounded. (2) Spherasters, 40 to 46 fi in 

 diameter, with a large centrum and thick, unbranched, 

 abruptly pointed actines, of which 6 to 8 are visible in ono 

 plane ; they are numerous in the cortex and the outer choano- 

 some, but rare elsewhere. (3) Chiasters — usually strongylote 

 but sometimes faintly tylote, and with more than 6 rays — are 

 very numerous throughout the entire sponge and densely 

 packed in the outer half of the choanosome. They range in 

 diameter from 10 to 16 ft, and are distinctly larger in the 

 inner half of the choanosome than elsewhere. 



Pembroke, Bermuda, 

 May 25, 1017. 



References. 



Dendy, A. 1905. " Report on the Sponges collected by Prof. Herdman 



at Ceylon in 1902." Report to Government of Ceylon on the 



Pearl Oyster Fisheries of the Gulf of Manaar. Suppl. Report 18, 



pp. 57-246, 16 pis. 

 . 1916. " Report on the Homosclerophora and Astrotetraxonida 



collected by H.M.S. ' Sealark ' in the Indian Ocean." Trans. Linn. 



Soc. Lond. ser. 2, Zool. vol. xvii. pp. 226-271, pis. xliv.-xlviii. 

 SOLLAS, W. J. 1888. " Report on the Tetractinellida collected by 



H.M.S. ' Challenger ' during the Years 1873-76." Rep. Sci. Pes. 



Voy. H.M.S. ' Challenger,' Zoology, vol. xxv., clxvi+458 pp., 



45 pis., 1 map. [Appendix II. pp. 411-445, pis. xliii., xliv.] 

 Wilson, H. V. 1902. " The Sponges collected at Porto Rico in 1899 



by the U.S. Fish Commission Steamer ' Fish Hawk.' " U.S. Fish 



Comin. Bull. (1900), Part 2, pp. 375-411. 



III. — New Lepidoptera in the Joicey Collection. 

 By L. B. Pkout, F.E.S. 



Family Lemoniidae. 

 1. Sabalia bamsi } sp. n. 



<£ . — 74 mm. 



Similar to jacksoni, E. M. Sharpe (Ann.& Mag. Nat. Hist. 

 (G) v. p. 443, 1890), British East Africa, of which it may 

 possibly be a subspecies. Abdomen beneath with the 

 proximal segments more heavily blackened. 



Fore wing slightly narrower ; antemedian line (bar) thicker ; 

 no appreciable black dusting in the interspaces between R, 3 

 and M 1 ; premarginal black band broader ; proximal half of 

 abdominal margin not blackened. 



