ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 



45 



include Lepidoderma squammatum (Dujardin), Cheetonotus montevideensis 

 sp. n., C.formosus (A. C. Stokes), C. larus (0. F. Mliller), and Proich- 

 thydiwn coronatum g. et sp. n. In the new genus the head is sharply 



■■ a; . .jli i u^iyu i »u i m. i ,{vn^ 





■'T'ffi-fif*-'^' 



Fig. 2. — Proichthydium coronatum g. et sp. n, x 500. 



separated from the body without there being any neck ; the cuticle is 

 smooth ; there are no appendages except a pair of mobile caudal falciform 

 blades. A o-eneral classification is given. J. A. T. 



Echinoderma. 



Asexual Multiplication in Coscinasterias tenuispina. — W. J. 

 Croziee {Proc. Amer. Soc. Zool. in Anat. Fiecord, 1919, 15, 344). 

 Asexual multiplication of this starfish occurs by spontaneous division of 

 the body, and is at a maximum during the summer midway between the 

 sexual periods. The formation of new rays at a division-surface is 

 frequently accompanied by the appearance of new madrepores, and the 

 number of madrepores is positively correlated with the total number of 

 rays, as if there were some functional relation., J. A. T. 



Porifera. 



Buds in Sponges. — \Y. J. Crozier and Blanche B. Crozier 

 {Proc. Amer. Soc. Zool. in Anat. Record, 1919, 15, 344). In Coppatias 

 yniUhrooki sp. n. buds are formed like Dojiatia buds (" Tethya "-buds), 

 and it is interesting that the species inhabits mangroove creeks, harbour- 

 ing three well-differentiated types of Donatia, all reproducing by buds — 

 a rare method in marine sponges. J. A. T. 



New Sponges from Spain. — F. F. Hernandez {Revista R. Acad. 

 Cienc. 3Iadrid, 1918, 16, 1-8, 1 pi., 5 figs.). Three littoral sponges 

 are described — Leucandra sulcata sp. n., L. riojai sp. n,, and Artemisma 

 hispanica sp. n. Drawings of the spicules and photographs of the entire 

 sponges are given. J. A. T. 



