SPONQIIDA. 
5 Sjpong. 
species. Character emended so as to comprise all forms with smooth or 
spined linear echinating spicules and minute equianchorates. Tenacia 
clathrata, Schmidt, and other species are added to the genus. 
To his group Microcionina^ Carter, (1) p. 39, now adds the genus Ilyme- 
desmia, s. str. 
Microciona atro-sanguinea and M. armata, Bowerbank ; (1) p. 40, ^ulf 
of Mauaar. 
Hymerrhaphia vermiculata, Bowerbank, var. erecta, and H. clavata, id.; 
(1) p. 46, Gulf of Manaar. 
Phacellia, (9) p. 81. Represented in the Caribbean Sea district ; it 
appears to be there connected with Axinella by a species which comes 
near A. cannabina; probably Hymerrhnplna vermicidata and Axinella 
rugosa form part of a series continuous with it. 
Baculifera\ Carter, (1) p. 47, records fragments of Sponge belonging 
to this group, from the Gulf of Manaar. 
Holorrhapiiidota (Carter). 
Species of Renierince and Suberites, Vioa, and Polymastia, obtained from 
Gulf of Mexico and Caribbean Sea, (9) p. 77, but mostly left undeter- 
mined. 
Amorphina, (2) p. 89, A. caspia, Grimm, p. 92, Schmidtia, 1. c. p. 104, 
Pellina, p. 109, Reniera, s. str. p. 114, R. inflata, p. 119, with taurica, 
var. n. 
Reniera, (1) p. 48. Three species, yellow, white, and dark brown in 
colour respectively, described without names, from the Gulf of Manaar, 
by Carter, pi. v. figs. 16-18. Schmidt’s diagnosis of the genus, published 
in 1870, is justified by Dybowsky, (4) p. 45 ; he finds two distinct types 
in it, viz.: (1) based on R. alba, with the spicules united into a network 
by their points only ; (2) on R. fortior, with the horny substance spread- 
ing out into membranes and fibres, but not forming true fibres. R. sp., 
1. c. p. 50, pi. ii. fig. 3, pi. iv. fig. 2, Artielnij Gulf, Black Sea, described 
without name. 
Reniera fibulata, Schmidt, (1) p. 48, Gulf of Manaar. 
Reniera gracilis, Dybowsky, (4) p. 47, pi. iii. fig. 3, pi. iv. fig. 16, = 
Veluspa polymorpha, var. gracilis, Miklucho-Maclay. 
Ilalichondria panicea, (6) pi. viii. figs. 18-31 & 42, soft parts figured. 
Metsclinilcowia, Grimm, (4) p. 50. Defined afresh. It is nearly related 
to Reniera, and distinguished from all other Halichondroid genera by the 
scanty amount of its horny substance, and by the peculiarities of its 
spicules. M. tuberculata, 1. c. p. 64, pi. i. fig. 9, pi. iii. fig. 6, pi. iv. fig. 15 ; 
a variation of *156 to *183 mm. in the length, and ‘012 to *015 mm. in the 
breadth of the skeleton spicules was observed in a series of 6 examples. 
M. flava, 1. c. p. 57, pi. i. fig. 8, pi. iii. fig. 5, pi. iv. fig. 12 ; the skeleton 
spicules, which are spined, range from *159 to *186 mm. in length, and 
from *006 to *12 in thickness in different specimens. 
Pellinula, Czerniavsky, (2) [cf. Zool. Bee. xv.j. Intermediate between 
Amorphina, Tedania, and part of Esperia. Differs in spiculation from 
Tedania by sometimes having cylindrical instead of acuate spicules, and 
sometimes also bihamates and anchorates. 
