systematic. Spon g. 19 
3. S. boglicii , 0. S., including S. grubei , Marenzeller, Ecionema coac - 
tfwra, Bwk. 
4. S. pumex, 0. S. (Astrella pumex, Sollas). 
5. S. hispida, Buccich. 
The author gives a diagnosis of the Adriatic species. 
Vosmaer (2) agrees with Marenzeller as to the specific identity of 
Stelletta dorsigera , O. S., with S. grubei , 0. S., and of S. boglicii with S. 
anceps. S. mucronata , 0. S., may be identical with S. carbonaria , 0. S. ; 
but, in any case, it does not belong to the genus Stelletta , but to the genus 
Stryphnus, Sollas. 
Suberites domuncula , Ndo. ; for description of skeleton and spiculation 
see Hanitsch, p. 215. 
Suberotelites demonstrans, n. sp., Topsent, (2) p. 69. 
Tetilla truncata, n. sp. id. (2) p. 70. 
Thoom armata , n. sp., id. (6) pp. 89 & 90. 
Thoosa hancoclci , n. sp., id. (6) p. 89. 
Thoom radiata , n. sp., id. (6) pp. 89 & 90 (applied to one of the forms 
termed T. bulbosa by Hancock). 
Trachyx hystrix, n. sp. , id. (2) p. 69. 
Tragosia fibrosa, n. sp., id. (2) p. 65. 
Trochospongilla erinaceus , Ehrenberg ; for description see So VINSKY. 
Yvesia guernei , n. sp., Topsent, (1) p. 30. 
Yvesia pedunculata, n. sp. (1) p. 30. 
Yvesia rulleyi , n. sp., id. (1) p. 30. 
Yvesia hanseni , n. sp., id. (1) p. 30. 
Yvesia pertusa , n. sp., id. (1) p. 31. 
Yvesia richardi, n. sp., id. (1) p. 31. 
Yvesia fallax , n. sp., id. (1) p. 31. 
See also Pocta for descriptions of 26 species of fossil Sponges, 7 of 
which are new, and Weber for descriptions of 4 new species of 
Spongillidce. 
