0 Tun. 
TUNIC ATA. 
Styela psoloessa , n. sp., id. t. c. p. 337. 
Styela aurita , n. sp., id. t. c. p. 338. 
Styela argentata, n. sp., id. t. c. p. 340. 
Styela olitoria , n. sp., id. t. c. p. 341. 
Fam. AscidiidyTj. 
Ascidia decemplex , n. sp., Sluiter, (13) p. 343. 
Ascidia translucida , n. sp., id. t. c. p. 344. [This name is preoccupied, 
and must be changed,] 
Ascidia archaia , n. sp,, id. t. c. p, 346, 
Fam. Cxavelinidjj. 
A dichotomizing table, showing the diagnostic characters of the 
genera and species of this family, is given by Herdman (7). 
* Bhopalopsisy n, g., Herdman (7), p. 148, formed for the reception of 
the two ‘ Challenger ’ species formerly known as Ecteinascidia crassa 
and E.fusca. 
Perophora banyulensis, n. sp., Lahille, (8) p. 283. 
Perophoropsis herdmani, n. sp., id. t. c, p. 286. 
Clavelina nana, n. sp., id. t. c. p. 185. 
Ecteinascidia thurstoni , n. sp., Herdman, (7) p. 151. 
Ecteinascidia moorei, n. sp., id. t. c. p. 155. 
Rhopalona cerberiana, n. sp,, Lahille, (8) p. 266. 
ASCIDIA COMPOSITE. 
Laiiille does good service in unravelling the synonymy of some of 
the French Compound Ascidians, such as the species of Leptoclinum. 
Fam. DlDEMNIDiE. 
Didemnum fallax i n. sp., Lahille, (8) p. 80. 
Didemnum graphicum, n, sp., id. t. c , p. 82, 
Fam. PoLYCLINIDiE, 
Glossophorum hiimile , n. sp., Laiiille, (8) p. 204. 
Aplklium griseum , n. sp., id. t. c. p, 215. 
Aplidium cceruleum t n. sp., id. t. c. p. 215. 
MorchelliopsiSf n, subg. of Circinalium ; id. t. c. p. 237. 
^ Morchelliopsis pleyberianus , n. sp,, id. t , c. p. 237. [According to 
synonymy given, should be M. punctum, Giard.] 
LARVACEA. 
^ Oikomicron mikrateton , n. g. & sp., Swainson, (14) p. 18. 
