66 TRACHELIPODA. 



Conus generalis. — The General Cone. Plate XI. fig. 1. 



Shell oblong, turbinate, with reddish-brown, or orange clouds, 

 and interrupted fillets ; spire marginated. Two and a half inches 

 long. Inhabits the Indian seas. 



There are two sections of this genus. 



I. Shells coronate, or provided with knobs, round the edges 

 of the spiral volutions. 



II. Shell not coronate. 



Genus 2. — OLIVA. — Lamarck. 



Generic Character. — Shell subcylindrical, convolute, smooth, 

 and glabrous ; spire short, with canaliculated sutures ; aperture 

 longitudinal, emarginate at the base ; columella obliquely striated, 

 or plaited. 



The volutions of this genus, being- separated by a canal, at once distinguish 

 them from those of the Voluta and Mitra ; the same distinction separates it 

 also from the Ancillaria. 



Oliva omenta. — The Bloody Olive. Plate XI. fig. 2. 

 Shell pale fawn-coloured with large triangular spots of pur- 

 ple, edged with deeper fawn ; two dark brown spots on the edge 

 of the outer lip ; suture of the spire deep ; pillar plaited to 

 nearly the top. One and a half inch long. Inhabits the In- 

 dian seas. 



Genus 3.— ANCILLARIA — Lamarck. 



Generic Character. — Shell oblong, subcylindrical; spire short, 

 not caniculate at the sutures ; aperture longitudinal, effuse and 

 hardly emarginate at the base ; lower portion of the columella 

 with an oblique varix. 



The columella never being plaited distinguishes the shells of this genus 

 from those of the Oliva. The callous oblique band, at the base of the 

 columella, separates it from the terebellum. 



Ancillaria cinnamonea. — The Cinnamon Ancillaria. Plate 

 XI. fig. 3. Shell chestnut-brown, with white bands above; 

 varice of the columella reddish, and somewhat striated. One 

 inch long. Inhabits Trincomalee. 



Genus 4.— TEREBELLUM.— Zam«rcA. 



Generic Character. — Shell convolute, sub-cylindrical; apex 

 pointed ; aperture longitudinal, narrow above ; base emarginate ; 

 columella smooth, truncated beneath. 



