170 Bl I 11. i l\ 82, i Ml ED >l \ l ES \" \ I EON \I. MUSEUM 



and the distal Lntereyzygial Interval La •"> 7 muscular articulations. P, 

 mm. long and composed of 13 L5 segments, of which the Longesl arc two and one-half 

 times as long as broad. IV is :> mm. long, with 13 segments, which arc up to three 

 times as long as broad. P, is 3 nun. long, with 10 segments. P 4 is 2-3 mm. long, 

 with '.i segments. The pinnules Following become longer again. The distal pinnules 

 are 4.5 mm. long, with 15 segments, The disk is incised and is 2.5 1 mm. in diameter. 

 The color is red-brown, with the disk whitish. 



Gisleh -aid that the specimen last described might, because of the short P 3 , be 

 considered a young individual of Lamprometra palmata. It is to be remembered, how- 

 ever, that it is not until a rather advanced stage thai young individuals attain the 

 relationships between the lengths of the proximal pinnules that are characteristic of 

 fully grown individuals. For Pi is first formed, then Pj, and finally P 8 . The shortness 

 of I' 3 might therefore be ascribed to the youth of the individual. 



i eh pointed out that the relative and absolute lengths of the proximal pinnules 

 in the Bpecimei) from Bock's Station 39 are very variable. 



Lnral'it'us. llirado Strait, southwestern Japan (lat. 33°10' N., long. 129°18' E.); 

 7:; meters [A. 11- (lark, 1908, 1909, 1912, 1913, 1915, 1918] (1, C. M.). 



Dr. Tli. Mortensen's Pacific Expedition 1914-1916; station 21a; Misaki, Sagami 

 Bay, Japan; about 36 meters; dune 1914 [Gisleh, 1927]. 



Dr. Sixten Hock's Expedition to Japan, 1914; station 39; Misaki, Sagami Bay, 

 Japan [Gislen, 1922, 1924]. 



Dr. Sixten Hock's Expedition to Japan, 1914; station 47; Bonin Islands, east of 

 the Channel; 146 meters; August 1, 1914 [Gislen, 1922, 1924]. 



raphical niinji . Southern Japan from llirado Strait to Sagami Bay, and the 

 Bonin Islands. 



Bathymetrical range. — Littoral and down to 73 meters at least. Dr. Bock's 



rd of 146 meters refers to the length of dredging cable out, not to the actual depth. 



History. — This species was originally described under the name Ilimerometra 

 grwndis in 1908 from a specimen in the Copenhagen Museum from llirado Strait in 

 40 fathoms. In my revision of the family Himeromct ridae published in 1909 grandis 

 w a- referred to the new genus Dichrometra, and the type specimen was listed as Dichro- 

 metra grandis later in the same year in a paper on the crinoids in the Copenhagen 

 Museum, and again in 1912 in my memoir on the crinoids of the Indian Ocean. 



In my revision of the family Mariametridae published in L913 grandis was trans- 

 ferred to the new genus Li pammetra. As Liparometra grandis it was mentioned as a 

 southern Japanese species in 1915, and it was inserted in the key to the species of 

 Liparometra published in the report on the unstalked crinoids of the Siboga Expedition 

 in 1918. 



In 1922 Dr. Torsten Gislen recorded and described specimens from Dr. Sixten 

 Hock's Expedition to Japan, 1914, stations li'.t and 47, and in 1924 he discussed various 

 structural peculiarities of the species. In 1927 he recorded and gave notes upon a 

 specimen that had been obtained by Dr. Th. Mortensen in southern Japan. 



LIPAROMETRA 1:1 ' . Mis (P. H. Carpenter) 



Antedon regatii P. H. Carpi rea, C) all ng < Reports, Zoology, vol. 2(1, pt. tin, lsss, p. 'J:J7 id. 



tion; Tongatabu reefs), pi. 46. — Haktlaub, Nova Acta Acad. German., vol. 58, No. 1, 1891, 



