72 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



briefly noted certain differences between this specimen and the two types of compressa 

 from station 192, and mentioned some features of fragments of a larger individual 

 taken with it. 



In 1908 I recorded this species as Thalassometra compressa from Albatross station 

 5110. Under the name Parametra compressa I recorded two specimens from Albatross 

 stations 5166 and 5255 in 1909, and 18 specimens from stations 5279, 5325, 5367, 5411, 

 5519, 5523, and 5536 in 1911, giving brief notes on the latter. 



In my memoir on the crinoids of the Indian Ocean published in 1912 these Philip- 

 pine records were included under Parametra compressa. 



In 1913 under the name Parametra granulata I published a note on the specimen 

 from Challenger station 201 which I had examined at the British Museum in 1910, 

 citing certain differences between it and the two specimens of P. compressa from station 

 192, with which I compared it directly. 



In 11)14 Prof. Frank Wigglesworth Clarke and Dr. W. C. Wheeler published a 

 chemical analysis of the skeleton of Parametra granulata based upon material from the 

 Philippines which I had given them. Their analysis was republished in 1922. 



In my report upon the unstalked crinoids of the Siboga expedition published in 

 1918 I inserted granulata in a key to the species of Parametra and recorded and gave 

 notes on a young specimen from station 105. 



In 1928 Prof. Torsten Gislen gave additional notes on the Challenger specimen 

 from station 201 which he had examined in London. 



PARAMETRA ORION (A. H. Clark) 



Plate 5, Figures 19, 20; Plate 8, Figure 27; Plate 10, Figure 30 



[See also vol. 1, pt. 1, figs. 4, p. 63, 18, p. 67, 201, 202, p. 239, 270, p. 259, 489, p. 365; pt. 2, figs. 217, 



p. 163, 251, p. 199, 745, p. 349.] 



Antedon orion A. H. Clark, Proc. U. S. Nat. Mus., vol. 33, 1907, p. 143 (description; Albatross 

 station 4934) ; vol. 34, 1908, p. 486. 



Charitomctra orion A. H. Clark, Smithsonian Misc. Coll., vol. 50, pt. 3, 1907, p. 361 (listed); Proc. 

 Biol. Soc. Washington, vol. 21, 1908, p. 125 (should have been referred to Thalassometra). 



Thalassometra orion A. H. Clark, Proc. Biol. Soc. Washington, vol. 21, 1908, p. 125 (at first wrongly 

 referred to Charitomctra) ; Proc. U. S. Nat. Mus., vol. 34, 1908, p. 225 (comparison with Th. 

 [Parametra] fisheri; systematic position), p. 226 (comparison with Th. [Cosmiometra] delicata), 

 p. 310 (Sagami Bay). 



Parametra orion A. H. Clark, Proc. Biol. Soc. Washington, vol. 22, 1909, p. 16 (listed); Vid. Medd. 

 Naturhist. Foren. K0benhavn, 1909, p. 187 (Eastern Sea near Nagasaki, 170 fathoms; descrip- 

 tion of the specimen); Proc. U. S. Nat. Mus., vol. 39, 1911, p. 554 (between Pracas [Pratas] reef 

 and Formosa; compared with P. compressa) ; Crinoids of the Indian Ocean, 1912, p. 213 (synonymy ; 

 range); Proc. Biol. Soc. Washington, vol. 26, 1913, p. 182 (south of the Goto Islands, 124 fathoms); 

 Journ. Washington Acad. Sci., vol. 5, No. 6, 1915, p. 215 (southern Japanese species; range and 

 its significance); Unstalked crinoids of the Siboga-Expcd., 1918, p. 158 (in key; range), p. 160 

 (references). — Mortensen, Studies in the development of crinoids, 1920, p. 4 (size of eggs). 



Perissometra aranca Gisi.en, Nova Acta Reg. Soc. Sci. Upsaliensis, ser. 4, vol. 5, No. 6, 1922, p. 5 

 (200 meters), p. 6 (Kiu Shiu and Goto Islands), p. 120 (station 7a; detailed notes), p. 180 (listed), 

 figs. 103, 104, p. 122; Zool. Bidrag Uppsala, vol. 9, 1924, p. 285 (Kiu Shiu; 198 meters; details); 

 Vid. Medd. Dansk Naturh. Foren. K0benhavn, vol. 83, 1927, p. 2 (station 7; 198 meters), p. 33 

 (station 7; notes), p. 34 (compared with P. carinata), p. 68 (listed), fig. 23, p. 27; Ark. Zool., vol. 

 19, No. 32, Feb. 20, 1928, p. 8; Vid. Medd. Dansk Naturh. Foren. K"0benhavn, vol. 93, 1933, 

 p. 481. 



