SYSTEMATIC. 
Spong. 21 
Family ANOMOCLADiDiE. 
i Astylospongia prcemorsa F. R,, redescribed : Remes (40). 
iScytalia fastigiata, 8. radiciformis, S. terehrata: Jukes-Browne & Hill 
' (26) p. 508. 
Family Rhizomorinid^. 
iCtenendopoo'a callodictya (?) : Jukes-Browne & Hill (26) p. 505. 
'\Pachinion scriptum : Jukes-Browne & Hill (26) p. 507. 
i Seliscothon explanatus^ S. planus: Jukes-Browne & Hill (26) p. 508. 
iStachyspongia spica : Jukes-Browne & Hill (26) p. 505. 
iStichophyma tumidum^ S. sp. : Jukes-Browne & Hill (26) p. 508. 
(ii) MONAXONIDA. 
(a) Order HADROMERINA. 
]. Sub-order ACICULINA. 
Family CopPATiiDiE. 
Jaspis johnstoni (Schmidt) T., redescribed, p. 128; J. johnstoni (Schmidt), 
var. incrustans T., redescribed, p. 128; J. dendyi (Sollas) T., rede- 
scribed, pp. 129, 130: Topsent (50). 
Spong osorites place7ita T., redescribed: Topsent (50) pp. 130, 131. 
Topsentia, definition of genus, p. 131 ; T. glabra (Topsent) B., redescribed, 
pp. 131, 132; T. packastrelloides T., p. 133: Topsent (50). 
Family Stylocordylid^. 
Oxycordyla, n. g., definition of genus, p. 135 ; 0. pellita^ n. sp., described, 
pp. 135, 136: Topsent (50). 
Family Tethyid^. 
Heteroxya, definition of genus, p. 133 ; H. corticata T., redescribed, pp. 133 
-135 : Topsent (50). 
Tethya lyncurium : Mar. Biol. Ass. (34). — T. neioheryi : Dennant & 
KiTSON (8). 
2. Sub-order CLAVULINA. 
Family Clionid^. 
Alectona millari C, redescribed: Topsent (50) pp. Ill, 112. 
Cliona lahyrinthica H., redescribed, p. 105 ; C. levispira T., redescribed : 
Topsent (50) pp. 105-107. — C. duvernoyi, C. nardoi^ C. studeri : 
ScHUTZE (44). — C. celata: Mar. Biol. Ass. (34). — 1(7. cretacea: Rowe 
(41) p. 293. — tC. cretacea, C. glomerata : Jukes-Browne & Hill (26) 
p. 505. — C. pontica, C. typica, C. stationis, C. sp. ? (Czern) : Sowinsky 
(46) p. 289. — Clione, pearls originated by : Herdman (17). 
Botona pulchella C, redescribed : Topsent (50) pp. 108, 109. 
Thoosa armata T., redescribed: Topsent (50) pp. 109-111. 
