310 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



the Paris Museum, and in 1879 be assigned this species to the genus Antedon as under- 

 stood by him. 



In October 1882 Prof. F. Jeffrey Bell proposed a specific formula for this species, 

 which was amended by Carpenter in April of the following year. 



In 1887 Professor Bell recorded additional specimens from Ceylon. 



In the Challenger report on the comatulids published in 1888 Carpenter included 

 this species in his key to the Savignyi group and also said that its outer division 

 series are of two joints with the axillary a syzygial joint (that is, are 3[2 + 3]). Prob- 

 ably he confused the type specimen of reynaudi with a specimen of Capillaster multi- 

 radiata also collected by M. Reynaud in Ceylon, but he may have been misled by 

 Miiller's original description. 



In 1888 Professor Bell recorded this species from Tuticorin, Madras, on the Indian 

 shore of the Gulf of Manaar, whence specimens had been sent to the British Museum 

 by Edgar Thurston of the Madras Government Museum. 



In 1891 Dr. Clemens Hartlaub inserted reynaudi in his key to the species of the 

 Savignyi group of Antedon, using the same characters that were used by Carpenter 

 in 1888. 



In 1894 Edgar Thurston recorded this species as living on the stems of gorgonians 

 at Pamban, and also as being found along the shore in the Gulf of Manaar. 



In 1904 Herbert Clifton Chadwick recorded it from Ceylon, where it had been 

 dredged at one of the stations occupied during the pearl oyster investigations of the 

 Gulf of Manaar under the direction of Sir William A. Herdman. He gave an excellent 

 description of the species and figured it. Later in the same year he recorded it in a 

 supplementary report from another station, the specimen concerned having been listed 

 in the original report as Antedon variipinna. 



In the first revision of the genus Antedon published by me in 1907, reynaudi was 

 assigned to the new genus Himerometra, and in a revision of the family Himerometridae 

 published in 1909 it was assigned to the new genus Heterometra. 



In 1911 I published notes on Miiller's type specimen, which I had examined in 

 the Paris Museum in 1910, and in a short paper on Indian crinoids, and also in my 

 monograph on the crinoids of the Indian Ocean, both published in 1912, I recorded 

 and gave notes on specimens taken in Ceylon and at various places in the Bay of 

 Bengal, described a curiously abnormal specimen, and recorded a molluscan parasite 

 (see page 307). 



Under the name of Heterometra bengalensis I recorded numerous additional 

 specimens from various localities, all the specimens recorded as bengalensis being in 

 reality reynaudi. The figure, said to represent a typical example of bengalensis in 

 lateral view, was in reality drawn from a specimen of reynaudi. 



In 1913 I gave notes on the two specimens from Tuticorin in the British Museum, 

 and in 1915 Dr. Hubert Lyman Clark recorded 55 additional specimens from Ceylon. 

 He said that three of these are noticeably larger and have longer arms than the rest. 

 It is possible, or even quite probable, that these large long-armed individuals represent 

 H. amboinae instead of H. reynaudi. 



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

 1918 I included a key to the species of Heterometra in which both reynaudi and bengal- 



