xo, 1623. NOMENCLATURE OF RECENT CRINOIDS—CLARK. 539 
Ty pe-locality.—Lofoten Islands, among the Guldbrand Islands, 
near the fishing village of Skraaven (68° 11’ north lati- 
tude) ; 720 feet (120 fathoms). George Ossian Sars. 
lofotensis, for the Lofoten Islands, 
This name has been misspelled loffotensts by Perrier and 
Wyville Thomson. 
Rhizocrinus rawsonii Pourraues, 1874. 
1874. Pourrarss, Ill. Cat. Mus. Comp. Zool., IV., No. 8, p. 27. 
Type-locality—_Off Sandy Bay, Barbados; 80 to 120 fathoms. 
U.S. 8S. Hassler. ! 
Sir Rawson W. Rawson. Museum of Comparative Zoology. 
Rhizocrinus verrilli A. H. Cuark, 1908. 
1908. A. H. Cuarn, Proc. U. S. Nat. Mus., XX XIV, p. 207. 
Type-locality.—Off Marthas Vineyard, Massachusetts; 640 fath- 
Omer Ulisse. es awh: 
Prof. Addison E. Verrill. U.S. National Museum. 
Rhizocrinus weberi Déprrurin, 1907. 
1907. Doprrtern, Die gestielten Crinoiden der Siboga-expedi- 
tion, p. 15, pl 1, figs. 6-11; pl. 11, figs. 3-5; pl. v1, figs. 7-11; pl. 
vil, figs. 1-4; pl. vim, figs. 1-4; fig. 5 a, b, p. 14; first men- 
tioned, p. 2. : 
Type-locality—sSulu Archipelago, near Ceram Laut, or near 
Timor; 112 to 2,050 meters. Dutch S. 8S. Siboga. 
Dr. Max Weber. 
Stylometra A. H. Crark, 1908. 
1908. A. H. Cuarx, Bull. Mus. Comp. Zool., LI, No. 8, p. 245. 
Type.—Antedon spinifera P. H. Carpenter, 1881. 
otv\os=a pillar-+metra. 
Thalassometra A. H. Cuark, 1907. 
1907.- A. H. Crarx, Smiths. Miscell. Coll. (Quarterly Issue), 
L, pp. 3847, 359. 
Type.—Antedon villosa A. H. Clark, 1907. 
dartacoa=the sea- metra. 
Thalassometra crassicirra A. H. Cuarx, 1908. 
1908. A. H. Ciark, Proc. U. S. Nat. Mus., XXXIV, p. 225. 
Type-locality—Oft Molokai, Hawaiian Islands; 350-855 fath- 
oms. U.S. 8S. Albatross. 
crassus—=thick-+-cirra=cirrl. U. S. National Museum. 
Thalassometra delicata A. H. Crark, 1908. 
1908. A. H. Cruarx, Proc. U. S. Nat. Mus., XXXIV, p. 225. 
Type-locality Off Laysan Island, Hawaiian Islands; 319 fath- 
oms. U. 8. 8. Albatross. 
delicata= delicate. U. S. National Museum. 
