TURBO. 349 
engraving, however, is too rude a delineation to pronounce 
upon. 
From the locality appended (Europe) it seems that our 
author regarded the Turritella communis of Philippi (the 
T. terebra of the earlier writers upon British Testacea; 7’. Lin- 
nei of Deshayes, and perhaps, judging from Kiener’s figure, 
T. cornea of Lamarck) as either the young, or a depauperated 
condition of this fine species. Indeed, Linneus had published 
his description of that shell even prior to his establishment of 
the present species; but the first edition of the ‘ Fauna Suecica,’ 
wherein it had appeared, had no specific names attached, and 
independently of the European shell not strictly agreeing with 
the “carinis sex acutis,” the reference to the unnamed J’urbo 
of the ‘ Fauna’ formed but one-sixth of the total synonymy. 
As M. Deshayes has justly observed, the figure of Adanson 
(Voy. Senegal, pl. 10, f. 6) only introduced in the twelfth edition 
of the ‘Systema,’ must be excluded. He has founded upon it 
his Jurritella ligar, uniting the local African name of the 
species to the Latin appellation of the genus to which it be- 
longs. I cannot but regret that so profound a naturalist as 
that gentleman has proved himself to be, should so frequently 
adopt the barbaric names of Adanson, oftentimes, too, in pre- 
ference to the more classical ones proposed by other writers. 
Guvbo bariegatus. 
Our author having selected for his Turbo imbricatus that form 
of Turritella imbricata which has the basal belt of its volutions 
more particularly developed, has established the variety, wherein 
the imbrication is almost obsolete, and the colouring peculiarly 
rich, as a separate species. By the delineation (plate iii. fig. 3) 
of the Linnean type, I enable others to form their own opinion 
upon the subject (for the T'urritella imbricata runs closely into 
some allied congeners); for myself, I feel no doubt upon the 
identification, as I have compared a long suite of individuals 
with the engraved example. 
The cited figures of Seba (Mus. vol. iii. pl. 56, f. 26, 34, 31, 83) 
fairly enough represent the shell (26 has been, however, regarded 
