REPORT ON THE CRINOIDEA. 57 



Sound of Skye, first as Comatula woodwardii, 1 and then as Comahda celtica, 2 both of 

 which names must now lapse. 



6. Antedon quadrata. This is the Arctic type which was referred to Antedon celtica, 

 Barrett, first by von Marenzeller 3 and afterwards by Duncan and Sladen, 4 and has since 

 been rebaptized by myself. 5 



7. Antedon tenella, Eetzius, sp. This species, which dates back to 1783, was 

 described by Say in 1825 as Alectro dentata, and is better known in Europe as Alecto 

 sarsii, Duben and Koren. 



8. Antedon variipinna, Carpenter. To this species I now refer my own Antedon 

 crenulata, together with the Antedon decipiens and Antedon irregularis of Bell. Some 

 forms of it seem to have but ten arms. 



9. Antedon granulifera, Pourtales. There is a syzygy between the two palmar 

 joints of this species, which escaped the notice of Pourtales. 6 



10. Antedon insequalis, n. sp. Most examples of this species that I have seen 



br 



conform to the type A.3.^-, but in one individual there is a single series of two 



palmars, the axillary with a syzygy, while the first brachial above it is also traversed by 

 a syzygy (PI. LI. fig. 2). I much doubt, however, whether this is anything more than an 

 abnormal development ; but I have recorded it in order to guard against the possibility 

 of similar forms being subsequently found and described as new species. 



Genus AGTINOMETRA. 



I. (i) a.p4 r . 



1. brachiolata 2. pectinata 3. Solaris. 



d.(p.)br. . . 



(n) a. K. — 2 — 4 - paucicirra 



(iii) a.R.3.^-^. distincta 



a.R.3.^ 



2 



br. 



2 

 multibrachiata novse-guinex typica 



T 0n two species of Echinodermata, new to the Fauna of Great Britain, Ann. and Mag. Nat. Hist., 1857, ser. 2, 

 vol. xix. p. 33. 2 Ibid., vol. xx. p. 44. 



3 Die Coelenteraten, Echinodermen und Wiirmer der k. k. Osterreichisch-ungariscken Nordpol-Expedition, Denkschr. 

 d. k. Akad. d. Wiss. Wien, 1877 [1878], Bd. xxxv. p. 380. 



4 A Memoir on tke Echinodermata of the Arctic Sea to the West of Greenland, London, 1881, p. 75, pi. vi. 

 tigs. 5, 6. 



6 On the Crinoidea of the North Atlantic between Gibraltar and the Faeroe Islands, Proc. Roy. Soc. Edin., 1883-84, 

 voL xii. p. 375. 



6 Bull Mus. Camp. Zobl, 1878, toI. v. No. 9, p. 215. 



(ZOOL. CHALL. EXP. — -PART LX. 1888.) OoO 8 



