CONTENTS OF THE FIRST VOLUME, 



EXHIBITING THE FINAL CORRECTIONS AND ADDITIONS. 



Species of questionable indigenousness are printed in italics ; spurious and 

 unrecognized species in nonpareil. The addition of (a. i."* to a species refers the 

 reader to the first Appendix, or Supplementary Notes on the Acephala, in the 

 Second Volume, (a. ii.) to the Appendix at the end of the work. 



ACEPHALA TUNIC AT A. 



BOTRYLLID^ OR TRUE 

 COMPOUND ASCIDIANS 



Aplidium 

 A. ficus 

 A. fallax . 

 A. nutans . 

 A. verrucosura 



SiDNYUM 



S. turbinatum (a. i.) 



POLYCLINUM 



p. aurantium 

 Amouroucium 

 A. proliferum 

 A. Nordmanni 



A. Argus . 

 Leptoclinum 



L. maculosum 

 L. asperum 

 L. aureum . 

 L. gelatinosum 

 L. Listerianum 

 L. punctatum 



DiSTOMA 



D. rubrum 

 D. variolosum 



BOTRYLLUS . 



B. Schlosseri 

 B. polycj-clus 



B. conglomeratus 



VOL. I. 



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21 



BoTKYLLUS continued. 



B. gemmeus . . .22 



B. violaceus • . .22 



B. smaragdus . . .22 



B.bivittatus . . .23 

 B. rubens (a. i.) 

 B. virescens (a. i.) 

 B. castaneus (a. i.) 



BOTRYLLOIDES . . .23 



B. Leachii . . .23 



B. albicans . . .24 



B. rotifera . . .24 



B. rubra . . . . 24 

 B. radiata (a. i.) 



B. ramulosa (a. i.) 



CLAVELINID^ OR SOCIAL 



ASCIDIANS . . .25 



Clavelina . . . .26 



C. Lepadiformis . . .26 

 Perophora . . .28 



P.Listeri . . . .28 

 Syntethys (a. ii.) 

 S. Hebridicus (a. ii.) 



ASCIDIAD^ . . .29 

 ASCIDIA . ... 30 



A. intestinalis . . .31 



A. canina . . . .31 



A. venosa . . . .31 



A. mentula . . . 32 



