On Budding in Perophora. 213 EXPLANATION OF THE PLATES. ^ Plate VIIL Lemhos hirsutipes, S • Lateral view of the animal, with line above showing the actual length. «.«., first joint of upper antenna ; a.i., lower antenna; m, mandible ; l.i,, lower lip ; wu'. 1 , first maxilla ; ?«.)•;»., maxlUipeds ; r/n.l, yn.2, first and second gnathopods ; pi-p. 2, 3, 4, second, third, and fourth perajo-pods; pip., a pleopod ; ur. 1, 2, 3, first, second, and third uropods ; T, telson. Plate IX. A. Lonhoides afer, 5 • a.i., loAver antenna ; //«. 1, gn. 2, first and second gnathopods ; prp. 1, 2, first and second perasopods. Plate IX. B. Lembos l^lrsutipes, $ . a.i., lower antenna ; yri. 1, gyi. 2, first and second gnathopods ; prp. 1, first perseopod. Plate X. Lemboides afer, (^ . Lateral view of the animal, with line above showing the actual length. a.s., upper antenna ; a.i., lower antenna ; l.s., upper lip ; m, mandible ; l.i., lower lip; mx.l, first maxilla; w.r. 2, second maxilla; map., maxillipeds ; r/n. 1, gn. 2, first and second gnathopods ; prp. 2, 3, 5, second, third, and fifth peraeopods ; ur. 1, 3, first and third uropods ; T, telson. XXX J. — On Budding in Perophora. By Geoege Lefevre *. While the Johns Hopkins Marine Laboratory was stationed at Beaufort, N. C, during the summer of 1894, I collected material for the purpose of studying the development of the buds of this Ascidian. Perophora viridis, Verrill, was found growing luxuriantly on the wharf-piles, and ample material was easily obtained. My main object in undertaking this work was to compare the bud-development of this form with that of Botri/Uus, as described by Hjort t, and especially to determine, if possible, the origin of the nervous system. * From the 'Johns Hopkins University Circulars,' vol. xiv. no, 119, ])]). 75-77. t Mitth. Zool. Stat. Neapel, x. Bd., 1891-1893.