330 PROCEEDINGS OF THE ACADEMY OF [PaRT II 



1870, p. 255, pi. 22, fig. 1, we propose the name Conus maculospira 

 Pils. & Johns. 



Conus perlepidus Pils and Johns. Plate XX, fig. 5. 



Proc. A. N. S. Phila., 1917, p. 159. 



Conus consobrinus Sowerby . Plate XX, figs. 7, 7a, 7b. 



Conus consobrinus Sowb. Q. J. Geol. Soc. vi, 1849, p. 4.5. 



The high, straightly conic spire with coronated whorls is distinct- 

 ive. In large specimens from one to two or rarely three latest 

 whorls are without nodes. Spiral sculpture of the last whori is 

 variable and in adults generally restricted to the lower half. In 

 some young specimens the last whorl is covered with spiral threads, 

 partly granose. The posterior sinus of the aperture is very deep. 



Length 56, diam. 25 mm. 



Length 50, diam. 22.5 mm. 



There is a large series of various ages in the Gabb collection. 

 Also found in the Bowden formation, and in a modified form it ex- 

 isted into the Pliocene. 



Conus consobrinus ultimus Pils. and Johns. Plate XX, fig. 8. 



Proc. A. N. S. Phila., 1917, p. 160. 

 Pliocene of Costa Rica. 



Conus gaza Johnson and Pilsbry. 



Conus marginatus G. B. Sowerby, Quart. Journ. Geol. Soc. vi, 1849, p. 44. 



Guppy, Quart. Journ. Geol. Soc. xxxii, 1876, p. .528, pi. 29, fig. 5. Gabb, 



Tr. Amer. Philo.s. Soc. xv, 1873, p. 230. Not Conus marginatus J. de C. 



Sowerby, 1837. 

 Conus gaza J. and P. in Brown and Pilsbry, Proc. A. N. S. Phila. 1911, p. 342, 



pi. 23, figs. 2, 3. 



The figured type and 8 other specimens are no. 2554 A. N. S. P. 



Conus marginatus Sowerby, of Cossmann, Journal de Conchy- 

 liologie 1913, p. 44, pi. 3, figs 14, 15, is evidently another species. 

 It may be called Conus pseudomarginatus. 



Conus trisculptus Pils. and Johns. Plate XIX, fig. 6. 



Proc. A. N. S. Phila., 1917 p. 160. 



Conus longitudinalis Pils. and Johns. Plate XIX, fig. 4. 



Proc. A. N. S. Phila., 1917, p. 160. 



Conus strombiformis Gabb. Plate XXI, fig. 2. 



Conus strombiformis Gabb, Tr. Am. Philos. Soc. xv, 1873, p. 232. 



The upper part of the spire is regular, but the penultimate whorl, 



at its last third, begins to descend more rapidly, this continuing in 



the last whorl. The earliest whorls are worn, but the intermediate 



ones have low and obtuse but strong nodes, and no spiral striation. 



