150 Clark — New Recent Indian Crinoicls. 



Radials even with the edge of the eentro-dor.--al ; i Bri very short and 

 band-Hke, not qnite in contact basally, the lateral edges diverging at a 

 rather broad angle; i Br2 (axillary) almost triangular, slightly broader 

 than long, the anterior and lateral angles rather strongly produced, with 

 a rounded posterior jirocess incising the i Bri. 



The ten arms resemble those f)f the other species of the genus so far as 

 can be judged from tlie single mutilated specimen. The longest stump 

 measures 9 mm. to the tenth brachial. 



Family PENTACRINITID.E. 

 Gems IIYPALOCRTNT'S A. II. Clark. 

 Hypalocrinus liliaceus sj). nov. 



Type.— In collection of Indian ISInsenm ; 10° 25^ 00'" N. hit., 93° 43' 00'' 

 E. long.; 463 fathoms. 



Hypalocrinus Ulaccns is most nearly related to H. apringeri; the inter- 

 nodals are usually twelve to fourteen in number; ii Br 4 (3+4); in Br 2; 

 the elements of the division series and the lower brachials are not strongly 

 everted as in H. s)>ringeri, but are rather prominently overlapping, this 

 overlap forming a rather sliarp point on the side of the brachial which 

 bears the pinnule; this character gradually dies away after the jtroximal 

 third of the arm, disappearing almo.st entirely in the outer half. The first 

 syzygy occurs between the second and third brachials as in Capillaster. 



Family BOURGUETICRINIDiE. 

 Genus BATHYCRINIS Wyville Thomson. 

 Bathycrinus woodmasoni sp. nov. 



Type.— Cut. No. V- Indian Museum, from (i° 18' lat., 90° 40' E. long. ; 

 1 ,520 fathoms. 



This species is nearest to i>. equalorialls from between the INIarquesas 

 Islands and Central America, 2,320 fathoms, l)ut, though considerably 

 larger, it is of a more delicate build. 



Tlie tyjic sjK'cimen consists of a stem lacking the topmost columnars. 



Stem (without proximal portion ) smooth and slender, enlarging very 

 grailually toward tlu' root, the distal columnars with the articulations not 

 e.-<peciaily swollen, tlu- radicular cirri coiilincd to the terminal columnar; 

 length 327 mm., witii one hundred six columnars. Topuiost columnar 

 ]>rcseut twice as long as liroad, the following increasing to two and one- 

 iialf times as long as broad on tin- fourth, tlien more gradually to three 

 times as long as broad on the fourteentli, and nearly four times as long 

 as broad on the twenty-third ami following; length very slowly decreasing 

 after above the tiftieth, tlu' foiu-teenth from tiie distal end (root) and 

 following being as longaslu'oad ; last seven or eight with the articulations 

 slightly swoIUmi ; p(^rij)hery of the articular faces finely marked with 

 radiating lines except at the ends of the transverse ridge; proximal col- 

 umnars (piite cylindrical, the articulations becoming slightly enlarged 

 after the thirtieth ; s(iuarish lower joints slightly constricted centrally as in 

 those species of I'liizocrinus wiiich luive s(|uarish coluunuirs ; radicular 



