28 R. BULLEN NEWTON on 



type of my Vohitospina} That form, however, is much less inflated, its 

 sutural platform is more excavated and more oblique, its spire is shorter and 

 more spreading not turreted, and although possessing distant peripheral spines 

 the adult forms exhibit no compressed tubercles on the longitudinal costae. 

 None of the younger examples of this Nigerian shell are provided with the 

 large costal tubercle, but the longitudinal costae exhibit a minutely beaded 

 character at the junction of the spiral and longitudinal striae. Further, it may 

 be mentioned that the spiral ornamentation is usually rather stronger than the 

 longitudinal sculpturing. On account of its general resemblance, however, to 

 the Linnaean "Conus spinosus" from the European and British Eocenes, this 

 shell is regarded under Volutospina, a generic name which was proposed to 

 replace Volutilithes of Swainson, 1840, because it differed from that author's 

 first interpretation of his genus published in 1831. 



OCCURRENCE. Cuttings Nos. i, 5, 6, 10, n, 12, 13, 14, 15. 

 COLLECTORS. Mr. Kitson ; Sir F. Lugard. 



Yolutospina multispinosa, sp. nov. 



PLATE 3, figs. 3-5. 



DESCRIPTION. Shell turbinate, turreted, depresso-ventricose ; body-whorl 

 inflated, twice the length of the spire which comprises seven or eight volutions ; 

 surface with spiral and closely perpendicular striations, equi-distantly and 

 longitudinally costated ; suture deep, encircled by a horizontally-oblique spirally 

 ribbed platform, the outer margin of which is equi-distantly and minutely 

 spined at the posterior ends of the longitudinal costae, this spinose character 

 being continued on the succeeding circlets but less obviously ; aperture 

 elongately rounded, constricted near base into a short, wide and notched 

 canal, labrum horizontally ribbed within, margin crenulated, not thickened ; 

 columella nearly straight, twisted, spirally striated, base smooth, furnished in 

 the centre with three equi-distant, similar, oblique plications ; protoconch com- 

 prising about three whorls, two of which are smooth and laterally depressed 

 whilst the earliest whorl is more inflated and obtuse. 



DIMENSIONS. 



1 R. B. Newton ; Proc. Mai. Soc. London, 1906, Vol. 7, p. 103. 



