86 Mr. E. R. Lankester on the Zoological 
of the ocean were such as is generally supposed. Such 
physieal Lopes are fully discussed in the Report to the 
oyal Society of the late exploring expedition in H.M.S. 
* Porcupine.’ 
A. rosea, Les. Voyage sur la Bonite, ii. 377, pl. 19. f. 16-20. 
Med. 310 f.; Æg. 100-250 f. 
Ladas Keraudreni, Les. Ph.ii.205. -L.planorboides, Forb. 
Æg. 130 f. 
PTEROPODA. 
Embolus rostral Souleyet, voy. Bon. ii. 216, pl. 13. f. 1-10 
eere EE B.C. v. 114. = ? Bellerophina minuta, Forb. 
d. 310 f.; Æg. 100-250 f. 
Spiralis raices fu. B. C. v. 115, pl. 98. f. 4. Med. 
310 f.; P. 25-173 
S. bulimoides, Eydoux = Soul. ar Zool. (1840) 138; Voy. 
i f.; P. 664 f. 
. Æg. 
S. "e riii Forb. B. A. Rep. (1843), 186 ’ (Peracle). Æg. 
100 
ode tridentata, Forskal. Ph. i. 101, and ii. 70. Med. 
: 30 f. 
C. inflexa, Les. Ph. i. 101, pl. 6. f. 18 d mer erui 
and ii. 71 (H. vaginella). Med. 310 f.; Æg. 
C. "irado. Browne. B. O. v. 119, pl. 95. y ve Ped. 
40-310 f.; Æg. 130-250 f. ; P. 110-1380 f. 
C. subulata, "Quoy & Gaimard. Ph. ii. 72 (Cleodora spini- 
Jera). Med. 40-310 f.; Æg. 100-250 f. 
C. eua. Rang. Ph. po 2 NUS = Cleodora zonata 
(D. Ch.2), Ph. Æp 2 
VI -— Professor Hückel and Mr. Kent on the Zoological "eges 
ties of the Sponges. By E. Ray LANKESTER, B.A. Oxo 
Ir is scarcely right that the criticisms of my friend p 
Kent should be the only response called forth in this country 
by the admirable paper of Hiickel, in which he proposes to 
give the sponges an Intelligible position in the dice 
of organisms. Since others who share Hiickel’s views have 
not pointed out the destructible nature of Mr. Kent’s position, 
be unfounded. In the first in Mr. Kent commences by 
admitting one of the chief points which Hiickel contends for, 
