45 
Separatista, Gray. 
Animal ignotum. Operculum - ? Testa orbicularis , subdiscoi- 
dea, anfractibus primis contiguis, ultimo distincto; aperturd 
patuld, effusd, angulis subcanaliculatis ; umbilicus magnus, in- 
fundibuliformis , usque ad apicem. 
Shell orbicular, somewhat discoid, the first whorls contiguous, the 
last disunited ; aperture wide-spreading, angulated ; umbilicus large, 
infundibuliform, the whorls visible within as far as the apex. 
The Cornu of Schumacher and the Lippistes of Montfort, founded 
upon the Argonauta cornu of Fichtel, appear to belong to Carinaria 
of Lamarck. Steira of Eschscholtz would seem by the figure given in 
Oken’s c Isis’ to be an Atlanta badly drawn in an inverted position, 
and indeed is founded upon the “ Corne d’Ammon vivant ” of Le- 
sueur, Atlanta Peronii. 
Separatista, Gray (not described). 
Separatista Grayii, Adams. S. testa spird depressd, anfrac¬ 
tibus carinulis quinque transversis; aperturd oblong o-trans- 
versd ; labio reflexo , antice rotundato. 
Hab. apud Promontorium Bonse Spei. 
Shell with the spire depressed, whorls with five transverse keels ; 
aperture transversely oblong ; inner lip reflexed, anteriorly rounded. 
Hab. Cape of Good Hope. (Mus. Cuming.) 
Separatista Chemnitzii, Adams. S. testd spird elevatd, an¬ 
fractibus carinulis tribus transversis; aperturd subcirculari; 
labio subrefexo , antice producto, angulato. 
Hab. in insulis Philippinis. 
Shell with the spire elevated, whorls with three transverse keels ; 
aperture subcircular; inner lip somewhat reflexed, anteriorly pro¬ 
duced and angulated. 
Hab. Island of Bureas, Philippines; H. C. (Mus. Cuming.) 
Turbo separatista, Chemnitz. 
Professor Owen communicated a Memoir *, in continuation of 
his previous papers published in the Transactions (vol. iii. pp. 243, 
307, 345), on the Gigantic Wingless Birds of New Zealand. 
Having in the previous Memoirs determined and referred to their 
genera and species the different bones of the leg, he made those of 
the foot the subject of the present communication, which was illus¬ 
trated by the exhibition of an extensive series of remains from both 
the North and South (or Middle) islands of New Zealand; com¬ 
prising the entire series of phalanges of one and the same foot of the 
Palapteryx robustus, a gigantic species from Waikawaite ; a similarly 
complete series of the Dinornis rheides ; and series more or less in¬ 
complete of the phalanges of the Dinornis giganteus , Palapteryx in¬ 
gens, and other genera and species of the singular extinct wingless 
birds of New Zealand. The characteristics of the different phalanges 
* This paper will be printed in the Transactions, vol. iv. Part 1. 
