B 



Figure 20. — Narcixsia trigonaria. A, aboral ; B, oral. 

 10 cm. indicated. 



elevated. All plates covered with minute, uni- 

 form granules. Papulae single. Adambulacral 

 spines in three series, broader at tip tlian at 

 base, rather chisel shaped. Madreporite small, 

 striated. Rr=6.7 : 1. Color creamy yellow with 

 blotches of rusty red. 



Range : 



North Carolina to Gulf of Mexico. A single 

 specimen taken at the edge of the shelf off 

 Cape Lookout in 210 m. constitutes a new 

 record for North Carolina. 



Linckia bouvieri Perrier, 1875 



Description : 



Disc small, rays five, long, slender, rounded. 

 Primary plates of aboral surface large, ir- 

 regular, rounded, tumid, five or more on disc. 

 Plates become smaller, more numerous, and 

 crowded distally. Papulae numerous, in clus- 

 ters confined to aboral surface. Interactinal 

 plates in two or more close rows. Inner adam- 

 bulacral spines a close row of broad, some- 

 what flattened spines alternating with much 

 smaller blunt, peglike spines; outer row of 

 larger, stouter, more rounded spines ar- 

 ranged behind each small inner spine. Entire 

 actinal and abactinal surface covered with 

 fine gi-anules. Rr=10: 1. Color reddish fawn, 

 primary plates and oral surface cream. 



Range : 



North Carolina to the West Indies, 73 to 360 

 m. Taken from near the edge of the shelf 

 off Cape Lookout. 



Odontaster hispidus Verrill, 1880 



Description : 



Form depressed, stellate, with broad disc. 

 Rays five. Sing'le, hyaline, recurved spine at 

 apex of each jaw. Marginals only moderately 

 developed, convex, separated by wide sutural 

 grooves. Aboral plates elevated, capitate, with 

 dense cluster of slender, elongate spinules. 

 Interactinals (between adambulacrals and 

 marginals) with stout, elongate, acute or sub- 

 acute spinules. Large papular pores over 

 most of radial areas and center of disc. 

 Rr=2.2 : 1. Color pale salmon or yellowish. 



Range : 



Cape Cod to Florida, 30 to 875 ni. Most of the 

 stations from which this species has been 

 taken are north of Cape Hatteras. 



Goniaster americanus Verrill 



Synonymy : 



Goniaster americanus Verrill, 1871. 

 Pentagonaster semilunatus Perrier, 1876. 



148 



U.S. FISH AND WILDLIFE SERVICE 



