30 Spong. 
XVII. spongi^e. 
Family YLeandrospongim:. 
t Becfaia soeckelandi Schlut.; Schrammen (50) p. 19: Wollemann (69) 
p. 8. 
t Camerospongia fungiformis Gf.; Schrammen (50) p. 19. 
t Plocoscyphia, sp. ; Jukes-Browne & Scanes (30) p. 119. t P. convoluta 
T. Smith; Rowe (48) pp. 67 & 71. t P. fenestrata Smith; Jukes- 
Browne & Scanes (30) p. 119. t P. labyrinthica Rss.; Schrammen 
(50) p. 19. 
t Tremabolites megastoma (Roem.); Schrammen (50) p. 19. 
Family Staurodermid^e. 
Zittelospongia , n. g. of Staurodermiclce for t Z. meandriforrnis, n. sp., 
Middle Miocene of Italy; Malfatti (40), pp. 288 & 289, pi. xxiv, 
figg. 1 & 2, 5-8. 
Family Callodictyonid^e. 
t Callodictyon infundibulum Z.; Schrammen (50) p. 19. 
t Marshallia cilternans (Roem.), and til/, tortuosa (Roem.); Schrammen (50' 
p. 19. 
t Pleurope lacunosa (Roem.); Schrammen (50) p. 19. 
Family Cceloptychiibe. 
t Cceloptychium, sp.; Wollemann (69) p. 10. tC. ctgaricoides Goldf.; 
Wollemann (69) p. 9: Schrammen (50) p. 19. W. deciminum 
(Roem.); Schrammen (50) p. 19. t C. lobatum Goldf.; Wollemann 
(69) p. 9. f C. sulciferum Roem.; Schrammen (50) p. 19. 
Family V ENTRICULITIDiE. 
t Lepidospongia rugosa Schlut. ; Schrammen (50) p. 19. 
t Polyblastidium luxurians Z. ; Schrammen (50) p. 19. 
t Rhizopoterion cervicorne (Gf.) ; Schrammen (50) p. 19. 
t Sporadoscinia dechenii (Gf.), tS. micrommata (Roem.), and t S. venom 
(Roem.) ; Schrammen (50) p. 19. 
f Ventriculites convolutus Hinde, t F. cribrosus Phill., t V. decwrrens T. Smith, 
t V. impressus T. Smith, t V. mammillaris T. Smith; Rowe (48) 
pp. 67, 71. tT r . radiatus Mant. ; Rowe (48) pp. 67, 71: Schrammen 
(50) p. 19. t V . striatus T. Sm. ; Imkeller (29 a), p. 27 : Wollemann 
(69) p. 8. 
Family Nepheliospongid^:. 
Nepheliospongidce , n. fam. of Dictyonina; Clarke (11) p. 189. 
Nepheliospongia, n. g., type tiV. typica , n. sp., from Chemung beds, New 
York, pp. 189 & 190, pi. x, hgg. 1-3; tiV. avocensis , n. sp., from 
Chemung beds, p. 190, pi. x, fig. 4, pi. ii, fig. i; Clarke (11). 
HEXACTINELLIDA INCERT.E SEDIS. 
t Acanthospongia smithi Young; Peach (43) pp. 220-244. 
