490 Mr, 11. G. Smith on Eight new Butterjiies 



as also ill the numerous phenomena of amoeboid ingestion in 

 iii^lier Metazoa. 



The discussion of the origin of tlie Porifera and their rela- 

 tionship to the Choanoflagellata on the one hand, and to the 

 Cnidaria on the other, must be left to specialists in this group ; 

 but the facts shown above certainly seem to have a direct 

 bearing upon this difficult question. The fact that the inner 

 layer cells assume matftigopod and myxopod stages under 

 ditferent physiological conditions strengthens the resemblance 

 between the simpler sponges and the colonial Choanotlagellata, 

 and the absence of inter cellular digestion (with the morpho- 

 logical differences necessarily correlated to this) points to a 

 fundamental difference between the former and the Cnidaria, 



List of Works referred to. 



(1) Bidder. — Quart. Journ, Micr. Sci. xxxii. 



(2) H. .1. Cartkii. — Ann. & Mag. Nat. Hist. (Numerous articles.) 

 (.'!) Y. Dklage. — "Surle developpemeut des Eponges," C. II. Assoc. 



Fr. Sci. 1;^JJ0-91, 



(4) A. Dendy. — " Anatomy of Grantia lalnjrinthicap Quart. Journ. 



Alicr. 8oi. xxxii. 



(5) II. K. Durham. — " Migi-ation of Amoeboid Coi"puscles in Asterias," 



Trans. Hoy. Soc. 1887. 



(6) E. H.?>;cKEL. — 'Die Kalkscbwamme.' 



(7) IIkider. — Alb. Zool. Inst. Wien, vi. 



(8) Ln;BERKVHN. — " Beitriige zur Entwiclielungsgescliichte der 



Spongillen," Miiller's Archiv, 1856. 



(9) R. VON Lendenfei.d. — Zeitschr. f. wiss. Zool. xxviii., xlviii., and 



others. 



(10) E. jMetschnikoff. — Zeitschr. f. wiss. Zool. xxxii. 



(11) E. Metschnikoff, — 'Comp. Patliology of Intiammation,' 1893. 



(12) A. liuFFKR. — " Immunity against Microbes," Quart. Journ. Micr. 



Sci. xxxii. 



(13) A. Sedg-wick. — " Development of Perijiattis,'" Quart. Journ. Micr. 



Sci. xxvii. 



(14) AV, J. SoLLAS. — * Cassell's Natural History," vol. vi. 



(15) W. J. SoLLAS. — ' EncycloptBdia Britannica,' Sponges. 



LV. — Descriptions of Eight new Species of Butterflies from 

 Nno Ih-itain and Duke of Yoi-k Islands, in the Collections 

 of the [Jon. Walter Jlothschild and Mr. Orose Smith, cap- 

 tured hij Captains Cayley Webster and Cotton. By II. 

 Gkose Smith. 



Bapilio Webster i. 



J\fale. — Uppersi'de. Both wings black. Anterior wings 

 with a curved row of six white spots between the veins 

 towards the apex, the tirst above the costal ncrvure narrowly 



