220 SUPPLEMENT. 



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

 C, Costa, and P. volutella, Yalenc. 



P. 368.— D. LiNEAKis. F. Portrush (A. Bell) ! ; Coralline 

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

 vatida /me«>'is " belong to his species p^rpitZc^ra) ; Bohuslan 

 (Thuden). 



P. 370. — D. KETicuLATi. F. Bordcaux (Des Moulins). 

 \^v. formosa. G. Xaples (Stefanis, as Pleurotoma hystrix of 

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

 Renier 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 =PZmro hornet cornea, De Bl. Yar. 

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

 such species-making " cette hydro de la synonymic qui etouife 

 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. 

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

 and probably Mangelia costulata, Bisso. 



P. 377. — P. attenuata. F. Pisa (Manzoni) ; Monte Mario 

 (Bigacci) ! Xot P. nupenimwn of Tiberi. 



p. 379._p. cosTATA. F. Piedmont (Bellardi); Monte 

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

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



P. 381.— P. EUGULOSA. Birterbuy Bay (Walpole) ! F. 

 Yienna basin — Rhodes ! E. Arcachon (Lafont) ! Several 

 obsolete synonyms. 



P. 382. — P. brachysto:u:a. F. Coralline Crag, Sutton ; 

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



P. 384. — P. NEBULA, var. elonr/ata. Coast of Kerry, 25 f. 

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



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



p. 388.— P. NIVALIS. N.N.W\ of IJnst, 90-120 f. ; N. of 

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

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

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



