CIRRHI-VERMIGRADA. 
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 kept 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-like 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 whitish band extends ; spaces between 
the belts of suckers of a bluish- white, with numerous irregular narrow 
transverse whiter lines of various breadth.” 
C. Uyndmani , mihi. 
White, 5-angled, skin smooth, a double close row of large (non- 
retractile ?) suckers on each angle ; tentacula 10, sessile, white, 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 Killery, 3 to 12 fathoms, in 1840. Roundstone, 
Mr. M‘Calla. 
C. inhcerens , Mull. 
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 species. 
C. niger, Couch. 
Obtained by Mr. W. Todhunter, on the West coast, Sept., 1848.* 
Genus Ocnus. 
O. brunneus, 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 Goodsir. 
North-East coast, W. T. Lahinch, Co. Clare, W. T. Glendore, Pro- 
fessor Allman. 
* At Tory Island, off 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 the species, even with doubt, in the present state 
of our knowledge of the Holothurice. 
Supposed to be C. Niger. — Ed. 
