26 MONOGRAPH OF THE ATLANTIDAE. 



to each other, and crossing the lines of growth, not to 

 be confounded with the undulating spiral sculpture at the 

 beginning of the last whorl. In fig. 27 they are not 

 figured. 



A specimen, figured ! ) by Vayssière under the name ot 

 »A. inclinata'* (fig. 91), most likely belongs to A. fusca y 

 chiefly on account of the »nombreuses lignes longitudinales 

 parallèles, constituées par une multitude de petites ponc- 

 tuations." No mention is made, however, of the much 

 coarser sculpture on the spire, which would certainly 

 have been observed, if present. 



Group of Atlanta inclinata. 



It contains two species : 



11. Atlanta inclinata Souleyet. 



12. Atlanta gibbosa Souleyet. 



These species are certainly not nearly related, and I have 

 enclosed them in one group only for the sake of convenience, 

 as, though mutually very clearly distinct, they are separated 

 oft from the other species by their large, conical spire, 

 which is always reflexed on the last whorl, either forward 

 or backward. 



Species 11. Atlanta inclinata Souleyet. 

 1852. Atlanta inclinata Souleyet, non Vayssière. 



(Plate 5, figs. 30—32). 



Animals : 



Red Sea, January '06, 1 sp., Buitendijk. 



„ April '06, 1 sp., „ 



Indian Ocean, April '06, 1 sp., „ 



This beautiful species is easily recognisable by the 

 following characters: 1°. the large spire forms a short 



1) Another specimen (tig. 90) under the same title is probably A. inflata 

 (see p. 21). 



Notes from the Ley den Museum, Vol. XXX, 



