538 KEPORT OF COMMISSIONER OF FISH AND FISHERIES. [36] 



LIST OF ECHINODEBMATA DBEDGED BY THE "JLBATBOSS" IK 1883.* 



In this list a few northern species are included that were taken in 

 comparatively shallow water, on George's Bank and Brown's Bank, off 

 Gape Sable, Nova Scotia, and are not yet known from the deep water 

 farther south. , 



HOLOTHUEIOIDEA. 



Benthodytes gigantea Verrill. 1884. Figs. 31, 31a, 316. 



B. range, 938 to 2,033 fathoms, 1883. Locally very abund.ant. 



Buphronides cornuta Yerrill. 1884. Figs. 32, 33, 33a. 

 B. range, 855 to 1,735 fathoms, 1883. Locally abundant. 



LopJiothuria Fabricii Yerrill. Figs. 34, a, young. 



B. range, 16 to 1,168 fathoms (75 to 858 fathoms, 1883, George's Baul 

 and oflt" Nova Scotia). Scarce and small, except northward. 



LopJiothuria squamata (Miiil.) Yerrill (?) 

 B. range, 80 fathoms, 1883, off Nova Scotia. Eare. 



Fsolus phantapus (Fabr.) Oken. 



B. range, 86 fathoms, 1883, near George's Bank. Northern. 



Pentacta frondosa Jseger. 



B. range, 20 to 141 fathoms (86 to 141 fathoms, 1883, near George's 

 Bank). Not common south of Oape Cod; abundant from Maine 

 northward. 

 Pentacta minuia (Fabr.) Yerrill. 



B. range, 60 to 101 fathoms, 1883, off" Nova Scotia. Common from 

 Maine northward in shallow water. 

 Thyone scabra Yerrill. 1873. 



B. range, 51 to 640 fathoms (105 to 547 fathoms, 1883). Common. 

 Trochostoma turgida Yerrill, = Molpadia turgida Yerrill. 1879. 



B, range, 45 to 858 fathoms, 1883. Not uncommon. 

 Trochostoma Ayresii Yerrill. 1885* 



B. range, 1,467 to 2,033 fathoms, 1883. Not uncommon. 

 Trochostoma abyssicola Yerrill. 1885. 



B. range, 1,200 to 2,000 fathoms. Not uncommon. 

 Echinosoma abyssicola Yerrill, sp. nov. 1885. 



B. range, 2,033 fathoms, 1883. More frequent in 1884. 



A small, white, fusiform species, 15 to 20™"' long, entirely covered 

 with large, strong plates, each of which bears a conical spinule. 



*Many of the EcMnoderms of this region have been described by the writer in 

 *' Brief Contribntions to Zoology" in the American Journal of Science, 1878 to 1885. 

 See also Proc. U. S. Nat. Mus., vol. ii, 1879. 



A general catalogue of the Echinodernjs dredged from 1880 to IBgg is contained iu 

 Part s, of this report, p. 658. 1H84. 



