HOLOTHURIA. 49 



a. The Minch. J. Gwyn Jeffreys, Esq. 



b-c. Kilbrennan Sound, 50 fms. 3/4/88. John Murray, Esq. 



d-f. 4 miles S.E. Sanda, 30-38 fms. 19/3/88. John Murray, Esq. 



g-k. North of Scalpa, 40-GO fms. John Murray, Esq. 



2. Holothuria tremula. (Plate VI. fig. 4.) 



Holothuria tremula, Gunnerus, Vet.-Akad. Hdlg. xxviii. (1767) p. 119, 

 pi. iv. fig. 3; Linn. Syst. Nat. xii. (1767) p. 1090 (partim) ; 

 Ascanius Sr Rathke, Icones, (1805) pi. xliv. ; Dub. ty Kor. Vet.- 

 Akad. Hdlg. 1844 (1846), p. 319, pi. iv. figs. 24-27 ; Sars, Norg. 

 Ech. (1861) p. 113; Selenka, Zeit.f. wiss. Zool. xvii. (1867) p. 340, 

 pi. xix. figs. 90-93 : Norman, Ann. <$• Mag. vi. (1880) p. 4-15 ; 

 Lampert, Seewalzen, (1885) p. 83; Theel, Chad. Rep. Hoi. (1886) 

 p. 212 ; Bell, Ann. <y Mag. iv. (1889) p. 444 ; id. J. Mar. Biol. 

 Assoc, i. (1890) p. 326. 



Holothuria elegans, O. F. Midler, Prod. Zool. Dan. (1776) p. 231 ; 

 id. Zool. Dan. (1788) p. 1, pis. i.-iii. ; de Bl. Diet. Sci. Nat. xxi. 

 (1821) p. 316 ; Jager, De Hoi. (1833) p. 22. 



Holothuria (Thelenota) elegaus, Brandt, Prod, descr. An. (1835) 

 p. 53. 



Fistularia elegans, Lamk. An. s. Vert. iii. (1816) p. 75. 



Body elongated, skin thick, with conical papillae on the dorsal 

 surface ; more or less extensive rosy patches which, after immersion 

 in spirit, gradually become dark. The mouth surrounded by two 

 circlets of papillae. The ventral podia somewhat variable in size 

 and number. The tables (PI. YI. fig. 4) have delicate disks with four 

 large central and a varying number of smaller peripheral angulated 

 holes ; the margin with a number of angular projections. A number 

 of simple or branched rods present near the podia. 



Distribution. Eastern side of North Atlantic from Bay of Biscay 

 to Norway. 45-672 fms. 



a, b. 45 miles off Blackrock, 500 fms. Royal Dublin Society. 



c. 50 miles TV. ^ S. of Purslev Head, 325 fms. R. Irish Academy. 



d, e. 49° to 50° N., 9° to 11° W., 70-400 fms. G. C. Bourne, Esq. 



/, g. Ross of Mull, 45-60 fms. John Murray, Esq. 



3. Holothuria nigra. (Plate VI. fig. 5 & Plate VIII. fig. 5.) 



Holothuria nigra, auct. 



The Nigger or Cottonspinner, Peach, Ann. fy Mag. N. H. xv. (1845) 



p. 171, pi. xiv. 

 Cucumaria niger, Kinahan, Nat. Hist. Rev. vi. (1859) p. 369. 

 Holothuria niger, Foot, op. cit. vii. (I860) p. 3'J4. 

 Holothuria nigra, Bell, P. Z. S. 1884, pp. 372 & 503 ; id. Nature, 



xxx. (1884) pp. 146 & 335 ; Lampert, Seeivalzen, (1885) p. 92 ; 



Tregelles, Trans. Penzance Nat. Hist. Soc. ii. (1886) p. 204 ; id. 



torn. cit. (1888) p. 376; Macmunn, J. Mar. Biol. Assoc, i. (n. s.) 



(1889) p. 57 ; Minchin, Ann. $ Mag. N. H. x. (1892) p. 273. 

 ? Forbsia *, Couch, Cornish Fauna, ii. (1841) p. 73. 



* Not Ptolus forbesi as Peach cites it. 



