12 



SYSTEMATIC INDEX. 



Pages 



39. MONTACUTA. MONTACUTA, .... 220,301 



109. Montacuta bidentata. Bidentate Montacuta, . 220, 302 



110. Montacuta oblonga. Oblong Montacuta, . 220,302 



111. Montacuta glabra. Smooth Montacuta. . 220,303 



112. Montacuta substriata. Substriated Montacuta, . 221,303 



40. Coebula. Corbula, .... 221,303 



113. Corbula inequivalvis. Common Corbula, . 221,303 



FAMILY XII. PHOLADINA, . 221, 304 



41. Pholas. Borer or Piddock., . . . 221,304 



114. Pbolas crispata. Curled Piddock, . . 221, 306 



115. Pbolas Candida. White Piddock, . . 221, 306 



CLASS V. BRACHIOPODA, . 307 



CLASS VI. APODA, . 307 



ORDER I. APODA HETEROBRANCHIATA, 309,310 



FAMILY I. ASCLDIIXA, . 309, 310 



1. Cynthia. Cynthia, .... 309,310 



1. Cynthia tuberosa. Tuberous Cynthia, . . 309,311 



2. Ascidia. ASCIDIA. Ascidia, . . . 309, 311 



2. Ascidia Prunum. Plum-like Ascidia, . . 309, 312 



3. Ascidia opalina. Opaline Ascidia, . . 309, 312 



4. Ascidia intestinalis. Intestinal Ascidia, . 309, 313 



MALENTOZOA. CIRRIPEDIA, 35i 



ORDER I. MALENTOZOA PEDUNCULATA, 353,356 



FAMILY I. LEPADIXA, . 353,356 



1. Lepas. Barnacle, .... 353, 356 



1. Lepas anatifera. Common Barnacle, . . 354,357 



2. Lepas stria! a. Striated Barnacle, . . 353,357 



3. Lepas sulcata. Grooved Barnacle, . . 353, 358 



2. Scalpellum. Lancet-Barnacle, . . . 354, 358 



4. Scalpellum vulgare. Common Lancet-Barnacle, . 354, 359 

 ORDER II. MALENTOZOA SESSILIA, 354,359 



FAMILY I. BALANINA, . 354, 359 



3. Balanus. Acorn-Shiill, .... 354, 360 



5. Balanus balaooides, Smooth Acorn-Shell, . 355, 360 



6. Balanus Comubiensis. Dwarf Acorn-Shell, . 355, 361 



7. Balanus costatus. Bibbed Acorn-Shell, . 355, 362 



8. Balanus communis. Coinmon Acorn-Shell, . 355, 362 



9. Balanus elougaius. Elougated Acorn-Shell, . 355, 363 



10. Balanus candidus. White Acorn-Shell, . 355, 364 



4. Clitia. Wart-Shell, .... 355,365 



11. CUtia Verruca. Common Wart-Shell, . . 355,365 



5. Cetopirus. Whale-Barnacle, . • • 366 > 365 



12. Cetopirus balsenaris. Common Whale-Barnacle, . 356, 366 



