CIRRHI-VEKMIGRADA. 443 



C. Drummondii, mihi. 



Of an olivaceous and white colour, with light brown suckers, which are 

 very numerous on the angles, from 6 to 12 in each transverse irregular 

 row ; when contracted, tentacula long, pedicled, trifid, plumose, purple. 



Length 10 inches. 



After having been kejDt in spirits for a short time, it appears angular, 

 corrugated, the corrugations smooth ; a few suckers between them. 



The specimen was dredged in Belfast Bay, in the month of June, by Dr. 

 J. L. Drummond, who drew up the following description from the living 

 animal : — 



" Bangor, June 27, 1839. — Holothuria dredged yesterday of an olivaceous 

 and white colour ; at first, the shape of a lemon, and nearly as large as a 

 middle-sized one ; to-day, 10 inches long, contracting itself slowly in 

 various places, but has not yet shown its tentacula. It has five broad 

 longitudinal bands of tubercle-Hke suckers running from end to end ; 

 these have four in each transverse row ; suckers light brown ; down the 

 middle of each of the five series a Avhitish band extends ; spaces between 

 the belts of suckers of a bluish-white, with numerous irregular narrow 

 transverse whiter lines of various breadth." 



C. Hynclmani, mihi. 



White, 5-angled, skin smooth, a double close row of lai-ge (non- 

 retractile ?) suckers on each angle ; tentacula 10, sessile, Avhite, plumose. 



Length 2 inches. 



Dredged in Belfast Bay, by my friend Mr. G. C. Hyndman, a well- 

 informed and zealous naturalist, to whom it is dedicated. 



Many dredged at Killeiy, 3 to 12 fathoms, in 1840. Roundstone, 

 Mr. M'Calla. 



C. inhcerens, Miill. 



An example of this species, about 3 inches in length, or as represented 

 in the Zoologia Danica, was found by Mrs. W. J. Hancock, cast on the 

 beach at Balbriggan (County Dublin) after a storm in March, 1843. 

 This has not been noticed as a British sjiecies. 



C. niger. Couch. 

 Obtained by Mr. W. Todhunter, on the West coast, Sept., 1848.* 



Genus OCNUS. 

 O. brunneiis, Forbes. 



Of this species I obtained several specimens by dredging in Strangford 

 Lough in June, 1838. At the same period of the following year, some 

 were similarly procured by Dr. Drummond, in Belfast Bay. 



O. lacteus, Forbes and GoodsLr. 

 North-East coast, W. T. Lahinch, Co. Clare, AV. T. Glendore, Pro- 

 fessor Aliman. 



* At Tory Island, ofl' the North-West coast of Donegal, Mr. Hyndman pro- 

 cured a specimen of this genus in a rock-pool between tide-marks, in August, 

 1845. I abstain from naming tlie species, even with doubt, in the present state 

 of our knowledge of the Holothuria. 



Supposed to be C. Niger. — Ed. 



