Mediterranean Tervia and Idiuoiica. 7 



and Piro. ;")()-!)() fatli. ; Cap Blanc, 235 met. ; Cahezos ; 

 Saiitaiidcr ; Hiif. East Africa; Ilolborii and Hrouf^liton 

 Islands, liowcn, Port Uenisou (Uuccnsland). 



Tervia discreta, Jullien. 



Ttrvia discvfta, Jullien, " Drajf. du ' Travailleur,'" Bull. Soc. Zoul. de 

 France, vol. vii. pp. (4), 500, pi. xvii. (igs. 70, 71 (1882). 



There are some specimens of this very small Tervia from 

 Faraglioue, Capri, said to be from about 150 fath. 



There are two zooecia in a series as a rule, but sometimes 

 three, and one median zotccium here and there with very 

 distinct boundary-lines. Branching may take place at fairly 

 short intervals at an angle of about 50'^. No ovicclls have 

 been found. 



Idmonea notomale, Busk. (PI. I. figs. 10-12.) 



Iilmnn/'a notomale, Rusk, Brit. Mar. Polv. pt. iii'. p. 12, pi. xij. a, 

 (187',) ; Seguenza, Furm. Terz. Keggio. pp. 330, 371 (1880). 



Idmonea milneana, Waters, " Ovicplb of Cjclos. Bry.,"' Jouru. Linn. 

 Soc, Zool. vol. XX. p. 270, pi. xiv. fig. 8 (1888) ; Neviani, Bri. neog. 

 Calabria, p. 232 (lOOO); Bri. neoz. di alcune Loc. d'ltalia, pt. 3, 

 p. 124 (1895); Bri. form. Plioc. e postpl. Boll. Soc. Geol. Ital. 

 vol. xviii. p. 13(1898). 



Idmonea targioni, Neviani, Cont. alia conosc. dei Bri. foss. Ital. p. (43), 

 139, pi iv. fig. 20 (1891); Bri. foss. Ital. Idmvnea, p. 21 (190<J). 



This is the largest species of Idmonea found in the 

 Mediterranean. The zoarium of species from Capri is about 

 120-115 mm. wide, and the zooecial aperture is about 0*17 mm. 

 Probably the largest species from the Southern Hemisphere 

 is /. milneana, and at one time I considered them synonyms ; 

 however, looking at various slides from the ^Mediterranean 

 and the Southern Hemisphere in my collection, I came to 

 the conclusion that a mistake had been made somewhere, 

 although I had rej)eated that on a re-examination of the 

 two so named by Busk they seemed identical, and so the 

 Museum slides of Busk's Catalogue were. But on my going 

 into the question it was found that the type figured specimen 

 of notomale, B., had been in the author's possession until the 

 time of his death, and has only comparatively recently come 

 to the Museum; whereas the s|)ecimens returned by Bu!>k as 

 notomale and milneana are identical, and the one, 75. 5. 29. 19, 

 marked notomale, Porcupine, Mediterranean, I am con- 

 vinced is not from the Mediterranean, an interchange having 

 taken place while in Busk's hand between specimens from 



