357 
Index. 
Page 
Introduction. 215 
Lepadomorpha Pilsbry, their phylo- 
geny and system. 216 
Systematic account of the collections: 227 
Family Scalpellidae . 227 
Genus Calantica . 227 
Calantica villosa (Gray).... 227 
— Mortensen i n. sp. 228 
— affin is n. sp. 232 
Genus Smilium . 234 
Smilium acutum (Hoek) .... 234 
Genus Scalpellum . 235 
Scalpellum Stearnsii Pilsbry 235 
— indicum Hoek .. 237 
— rubrum Hoek .. . 237 
gruvelianum Pils¬ 
bry . 238 
— californicum Pils¬ 
bry . 240 
— aff. salartice Gru- 
vel. 241 
— balanoides Hoek 242 
Genus Scalpellopsis . 243 
Scalpellopsis striatociliata n. 
sp. 243 
Genus Protomitella . 246 
Protomitella paradoxa n. sp. 247 
Genus Mitella . 251 
Mitella polymerus (Sowerby) 252 
— mitella (Linné). 258 
— sertus (Darwin). 260 
Genus Ibla . 262 
Ibla quadrivalvis (Cuvier) . . 262 
— pygmæa n. sp. 262 
Family Lepadidae . 266 
Genus Lepas . 266 
Lepas anatifera Linné. 266 
— pectinata Spengler... 266 
Genus Poecilasma . 270 
Poecilasma Kaempferi Darwin 270 
Genus Megalasma . 270 
Megalasma striatum Hoek . 270 
Page 
Megalasma minus Annan- 
dale. 273 
Genus Oxynaspis . 274 
Oxynaspis celata Darwin... 275 
Genus Octolasmis . 279 
Octolasmis orthogonia Dar¬ 
win . 279 
Genus Heteralepas . 279 
Heteralepas (Paralepas) mo- 
rula (Hoek). 281 
Heteralepas (Paralepas) in- 
termedia (Hoek). 281 
Heteralepas (Paralepas) Dan- 
nevigi n. sp. 282 
Heteralepas (Paralepas) scu- 
tiger n. sp. 284 
Heteralepas (Paralepas) no- 
dulosa n. sp. 286 
Heteralepas (Heteralepas) du- 
bia n. sp. 288 
Family Verrucidae . 290 
Genus Verruca . 290 
Verruca albatrossiana Pils¬ 
bry . 290 
Verruca cristallina Gruvel.. 292 
— Kr uger i n. sp.295 
Family Chtamalidae . 298 
Genus Catophragmus . 298 
Catophragmus Pilsbry n. sp. 298 
Genus Pachylasma . 301 
Pachylasma scutistriata n. sp. 301 
Genus Chtamalus . 305 
Chtamalus antennatus Dar¬ 
win . 305 
Chtamalus moro Pilsbry ... 307 
— fissus Darwin ... 308 
Genus Chamæsipho . 308 
Chamæsipho columna (Speng- 
ier). 308 
Family Balanidae . 309 
Genus Balanus . 309 
Subgen. Megabalanus . 310 
