ri CONTENTS. 



"Diag-nosis of the European Spongillidse." 172-180 



Condensed Synopsis, Carter's arrangement. 180 

 CV«s'«, Spongida ; OrcZer HoWhaphidota ; Family, Potamospon- 



gida. 

 Group, Spongillina; Genera :-Spongilla, Meyenia, Heteromeyenia, 



Tubella, Parmula, Carterius. 

 Provisional Group; Genera-Uruguaya, Potamolepis, Lubo- 



mirskia. 



Group SPONGILLINA 



(1) Gen. SPOXGILLA. 182 



(1) Spongilla aspinosa. 184 



(2) Spongilla laeustris. 186 

 Spongilla " v. paupercula. 189 

 Spongilla " v. dawsoni. 190 

 Spongilla " v. abortiva. 191 

 Spongilla " v. montana. 192 

 Spongilla " v. multiforis. 192 

 Spongilla " v. lehighensis. 193 



Syn. S. canalium, ramosa, lieherkuhnii, 



jordanensis. 172 



, Syn. Euspongilla laeustris, jordanensis. 172 

 Syn. S. mutica, fiexispina, lacustrioides. 190, 191 



(3) Spongilla rhenana, (Euspongilla rhenana.) 174 



(4) Spongilla alba. 193 

 (5)' Spongilla cerebellata. 194 



(6) Spongilla carteri. 194 



(7) Spongilla nitens. 195 



(8) Spongilla navicella. 195 



(9) Spongilla bombayensis. 196 



(10) Spongilla botryoides. 197 



(11) Spongilla sceptrioides. 197 



(12) Sponirilla einerea. 197 



(13) Spongilla fragilis. 197 

 Spongilla " v. minuta. 202 

 Spongilla " v. minutissiraa. 202 

 Spongilla " v. irregularis. 202 



Syn. S.lordii (201), conteda, siberica , glomerata. 176 

 iSgn. S. ottawaensis, morgiana, calumeti, segre- 



gata. 197 



(14) Spongilla igloviformis. 202 



(15) Spongilla niackayi. 204 



(16) Spongilla bohniii. 2()o 



(17) Spongilla nova? terrse. 206 

 Spongilla arachnoidea, 184 

 Siphydora echinoides. 184 



