220 SUPPLEMENT. 



The animal is sometimes of a pea-green colour. Pleurotoma 

 C., Costa, and P. volutella, Yalenc. 



p. 368. D. LINEARIS. F. Portrush (A. Bell) ! ; Coralline 

 Crag (S. Wood ; the specimens in his collection named " Cla- 

 vatula linearis " belong to his species perpulchra) ; Bohuslan 

 (Thuden). 



P. 370. D. RETICULATA. F. Bordeaux (Des Moulins). 

 Var. formosa. G. Naples (Stefanis, as Pleurotoma hystrix of 

 ,Bellardi)!; Adriatic (Stossich) ! Young = P. sjpinosa,De Bl. 

 Eenier did not describe this species ; and the names given by 

 Brocchi and J". Sowerby therefore have precedence. But 

 " quieta non moveri " is a good maxim in cases like this. 



P. 373. D. PURPUREA= Pleurotoma cornea, De Bl. Var. 

 Philberti = P. Lavice, Maravigna. Des Moulins rightly called 

 such species-making " cette hydre de la synonymic qui etouffe 

 et devore la science." 



P. 375, 1. 10 from bottom, after " P. nivalis" add " and P. 

 carinata " ; and, next line, for " has " r. " have ". 



P. 376. PLEUROTOMA STRIOLATA. F. Pisa (Manzoni). E. 

 Arcachon (Lafont) ! ; Adriatic ! Buccinum Citharce, v. Miihlf., 

 and probably Mangelia costulata, Eisso. 



P. 377. P. ATTENUATA. F. Pisa (Manzoni) ; Monte Mario 

 (Eigacci) ! Not P. nuperrimum of Tiberi. 



p. 379. p. COSTATA. F. Piedmont (Bellardi) ; Monte 

 Mario (Eigacci) ! E. G. Naples (Acton and Stefanis) ! ; Dal- 

 matia, 20-30 f. (Brusina) ! Not P. tceniata, Desh. 



P. 381. P. RUGFLOSA. Birterbuy Bay (Walpole) ! F. 

 Vienna basin Ehodes ! E. Arcachon (Lafont)! Several 

 obsolete synonyms. 



P. 382. P. BRACHTSTOMA. F. Coralline Crag, Sutton ; 

 N.W. Germany (Philippi) ; Pisa (Manzoni). 



p. 384. P. NEBULA, var. elongata. Coast of Kerry, 25 f. 

 (Moore, /. Walpole) ! E. Arcachon (Lafont) ! 



p. 386. P. L^EVIGATA. F. Cor. Cr., Sutton (coll. S. Wood) ! 



P. 388. P. NIVALIS. N.N.W. of Unst, 90-120 f. ; N. of 

 Hebr., 170 f. (C. and T.). F. Cor. Cr. Gedgrave (S. Wood, 

 as P. porrecta}. E. Loffoden I., 300 f. (Sars). The male 

 organ is ribbon-shaped and of an extraordinary length ; the 



