SYSTEMATIC. 
8 pony. 3 1 
Phakellia Bwk., diagnosed ; Arnesen (3) p. 23. P. microxephora n. sp. 
from Ea6t London, Natal, 85 fathoms ; Kirkpatrick (26) pp. 242 & 
243, pi. y, fig. 9, pi. vi, figg. 9 a-d. P. ventilabrum (Johnst.) ; Arnesen 
(3) PP- 23 & 24. 
Phycopsis prox. valida Thiele, described ; Thiele (50) pp. 934 & 935, 
pi. xxviii, fig. 1. 
Pseudaxinella sulcata 0. S., redescribed ; Thiele (51) pp. 378 & 379, 
pi. xxi, fig. 5. 
Raspailig, mcebii 0. S., vide Clathria dichotoma. 
Sigmaxinella arborea n. sp. from Natal Coast, p. 246, pi. v, fig. 13, pi. vi, 
figg. 14 a-c ; S. incrustans n. sp. from East London, Natal, 85 fathoms, 
pp. 246 & 247 : Kirkpatrick (26). 
Sollasella hystrix (Tops.), described ; Kirkpatrick (26) p. 247. 
Syringella gorgonioides n. sp. from East London, 85 fathoms ; Kirk - 
patrick (26) pp. 244 & 245, pi. v, fig. 11, pi. vi, figg. 11 a & b. 
Thrinacophora incrustans Kieschnick a doubtful species ; Thiele (50) 
p. 935. 
Tragosia Gray, diagnosed, inJ'undibuUformis (Johnst.) ; Arnesen (3) 
p. 24. T. infundibuliformis var. natalensis n. var. from Natal Coast, 
65-10 fathoms ; Kirkpatrick (26) p. 243, pi. v, fig. 10, pi. vi, figg. 
10 a-c. 
(iii) KE RATOS A. 
(a) DICTYOCERATINA. 
Family SPONGIDJE. 
Coscinoderma concentricum n. sp. from Natal Coast, 30 fathoms ; Kirk- 
patrick (26) pp. 254 & 255, pi. vi, figg. 19, 19a. 
Euspongia irregularis varr. dura Lclf., lutea Ldf., mollior 0. S., tenuis 
Ldf. ; Baar (4) pp. 28 & 29. 
Hippospongia densa Ldf. ; Baar (4) p. 29. 
Hircinia arbuscula Lend, described, pp. 256 & 257, pi. v, figg. 20, 20a, 6, 
pi. vi, fig. 20 ; II. arenosa Lend., described, p. 256 : Kirkpatrick (26). 
H. variabilis var. typica 0. S. ; Baar (4) p. 34. 
Stelospongia chaliniformis Ldf., p. 31 ; S. jlava n. sp. from the Chatham 
Ids., pp. 31-33, figg. a-c ; S. inter texta Hyatt, p. 31 ; S. kingii Ldf., 
p. 31 ; S. reticulata Ldf., pp. 30 & 31 ; S. lordii Ldf., p. 31 : Baar (4). 
S. sp., physiology ; Cotte (9). S. sp. from Cape Vidal, Natal, 
80-100 fathoms ; Kirkpatrick (26) pp. 255 & 256. 
Family SpongelidA:. 
Psammopemma inordinatum n. sp. from Natal Coast, 65-100 fathoms; 
Kirkpatrick (26) pp. 257 & 258, pi. vi, figg. 21 & 21a. 
Spongelia pallescens varr., physiology ; Cotte (9) : see ii, c, iv. 
Family Aplysinid^. 
Tliorecta cacos Ldf., T. exemplum varr. secunda Hyatt and tertia Ldf., 
tuba Ldf., and T. wuotan Ldf. ; Baar (4) pp. 29 & 30. 
