SYNAPTA. 33 



Key to the Species *. 



Tentacles with more than five digits 1. S. inhcerens. 



Tentacles with five digits or less. 



Tentacles eleven 2. S. buski. 



Tentacles twelve 3. S. diyitata. 



1. Synapta inhaerens. (Plate I. fig. 1.) 



Holothuria inhaerens, O. F. Mull. Prod, Zool. Ban. (1776) p. 232 ; 



id. Zool. Dan. i. (1779) p. 35, pi. xxxi. figs. 1-7 ; de Bl. Diet. Sci. 



Nat. xxi. (1821) p. 319. 

 Pentacta inheerens, Jiiyer, De Hoi. (1833) p. 13. 

 Cucumaria inhasrens, de Bl. Actin. (1834) p. 195 ; Kinahan, Nat. 



Hist. Rev. vi. (1859) p. 369. 

 Dactylota iuhasrens, Brandt, Prodr. Descr. Anim. (1835) p. 45. 

 Chirodota pinnata, Grube, Actin. etc. Mittehn. (1840) p. 41. 

 Synapta duverncea, Quatrefages, Ann. Sci. Nat. xvii. (1842) p. 19, 



pis. 2-5 [anatomy] ; Held, Vierteljahrschr . naturf. Ges. in Zurich, 



ii. (1857) p. 250, pi. ii. fig. 1 ; Freclol r Moquin-Tandoti], Monde de 



la Mer, (1866) p. 238, pi. xiv. 

 Holothuria (Synapta) inluerens. Rathke, Nov. Act. Leop. xx. (1843) 



p. 136. 

 Synapta inhserens, Diiben §■ Koren, Vet- Ah. Handly. 1844 (1846), 



p. 322, pi. v. figs. 56-62 ; J. Midler, Arch. f. Anat. u. Physiol. 



1850, p. 136 ; Woodward 8f Barrett, P. Z. S. 1858, p. 363, pi. xiv. 



figs. 18-22; Sars, Norg. Ech. (1861) p. 124; Selenka, Z. f. wins. 



Zool. xvii. (1867) p. 364 ; Lankester, Q. J. Micr. Sci. viii. (1868) 



p. 53 : Semper, Hoi. Phil, (1868) : Norman, Rep. Brit. Assoc. 



1868 (1869), p. 318 ; Jarzynsky, ' Trans. Petersb. Soc. Nat. i. 



(1870) p. 319; Leslie Sf Herdman, Proc. R. Phys. Soc. vi. (1881) 



p. 95 ; Graeffe, Arb. Inst. Wien, iii. (1881) p. 342 ; Dan. $ Kor. 



Norske Nordhavs Holoth. 1882, p. 80 ; Barrois, Cat. Crust. (1882) 



p. 55 ; Cams, Prod. Faun. Med. (1884) p. Ill ; Lampert, Seewalzen, 



(1885) p. 217 ; Theel, Chall. Rep. Hoi, (1886) p. 24 ; Bell, Proc. 



R. Irish Ac. iv. (1886) p. 621. 

 Synapta inherens, Gray, Brit. Rad. (1848) p. 12. 

 Synapta henslowana, id. ibid. 



Synapta girardii, Pourt. Proc. Amer. Assoc. 1851, p. 14. 

 Synapta pellucida, Stimpson fy Kurtz, apud Ayres, Proc. Bost. Soc. 



N. H. iv. (1852) p. 214. 

 Synapta tenuis (not Quoy $• Gaimard), Ayres, Proc. Bost. Soc. N. 



H. iv. (1854) pp. 11, 67, 148 ; Ayas. Sea-side Studies, (1865) p. 95, 



fig. 124 ; Verr. Proc. Bost. Soc. N. H. x. (1864) pp. 342, 354. 

 Cucumaria inhserens, Thompson, Nat, Hist. Irel. iv. (1856) p. 443, 

 Synapta galliennii vel saruiensis, Herapath, Q. J. M. S. v. (1865) 



"p. 5, pi. i. figs. 4-7. 

 Synapta ayresii, Selenka, Z. f. xviss. Zool. xvii. (1867) p. 362. 

 Synapta saruiensis, Lankester, Q. J. M. S. viii. (1868) p. 53, 

 Leptosvnapta inhsereus, Verr. Trans. Connect. Acad. i. " 1867 " 



(1871), p. 325. 

 Leptosynapta tenuis, id. ibid. 



* This and the following keys refer to British species only, and are there- 

 fore generally based on characters arbitrarily selected. 



D 



