306 THE DOLABELLINAE. 
8. Dolabella elongata Sowrrsy, 1868. 
Dolabella elongata SowrrRsy, Conch. icon., 1870, 16, pl. 1, f. 2a, b; Pruspry, Tryon’s Manual conch., 
1896, 16, p. 156, pl. 27, f. 31, 32; Cressmy, Martini and Chemnitz’s Syst. conchylien-cabinet, 
1899, 1, 8, p. 25, taf. 10, f. 3, 4. 
Haxirat:— Indian Ocean, Seychelles Islands. 
9. Dolabella californica Stearns, 1878. 
Dolabella californica Stearns, Proce. Acad. nat. sci. Phila., 1879, p. 395, pl. 7, f. 1, 2; Proc. U.S. N. M., 
1893, 16, p. 341; 1894, 17, p. 158; Piuspry, Nautilus, 1895, 9, p. 73; Tryon’s Manual conch., 
1896, 16, p. 159, pl. 66, f. 14-16. 
Hasirat.— Mulege Bay, Gulf of California, West Coast of Mexico. 
10. Dolabella neira Sowrrsy, 1899. 
Dolabella neira SowErRsy, Clessin, Martini and Chemnitz’s Syst. conchylien-cabinet, 1899, 1, 8, p. 27, 
taf. 10, f. 1. 
Hasirat:— Banda Neira Island, Moluccas. 
A comparison of the Easter Island specimen with the descriptions of the 
other known Dolabellinae renders it clear that it represents a new and unde- 
scribed species. I take great pleasure in naming it in memory of our great 
zoologist and oceanographer, Alexander Agassiz. 
Dolabella agassizi, n. sp. 
Length 160 mm. or more, the maximum diameter 80 mm., greatest cireum- 
ference 210 mm., at epipodia, tapering forward to 105 mm., at the anterior end 
of the bluntly conical body. Parapodia low, thick and fleshy, the dorsal slit 
between them one third the body-length. Posterior dise large, bounded by a 
smooth ridge. General surface of the body smooth, slightly tuberculate in the 
head-region, but destitute of cirrhi or processes. Anterior tentacles and rhino- 
phores cylindro-conic, close together, separated by about 1/10 the body-length, 
bases of the rhinophores moderately wide apart. 
Color light copper-green, the inner edges of the parapodia and (at least) 
the anterior floor of the pallial chamber vinous purple. 
Shell moderately large and strong, hatchet shaped, covered with light amber 
cuticle. Spire loosely coiled, heavily calloused and rough. Margin broadly 
reflexed dorsally behind, lessening and disappearing in front. Posterior sinus 
deep with a narrow reflexed dorsal margin. Length 54 mm., breadth 31 mm., 
altitude 6.0 mm. 
Hasiratr:— Easter Island, South Pacifie Ocean. 
