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ECHINODERMATA. 
Genus Thyone. 
T. papillosa, Miill. 
May , 1846. — Six specimens found among Killinchy oysters in Belfast 
market, brought to me alive. 
October , 1846. — Ten specimens, as above. 
Bantry Bay, 15 to 30 fathoms, Mr. M‘Andrew. A few dredged at 
Killery, 1840. 
T. Portlockii, Forbes. 
Belfast Bay, Colonel Portlock. 
T. raphanus, Duben and Koren. 
A specimen was dredged from between 15 to 30 fathoms about Bantry 
Bay, by Mr. M‘Andrew, in 1846. 
Genus Chirodota. 
C. digitata, Mont. (sp<). 
On the 18th of December, 1843, an individual of this species, which 
had hitherto been obtained only by Montagu, in Devonshire, was found 
lying on the sand between tide-marks near Carrickfergus Castle, during a 
search for natural history objects by Mr. Hyndman and myself. 
ORDER YERMIGRADA. 
Sipunculidce. 
Genus Syrinx. 
S. papillosus, mihi. 
Vermiform, brownish- white, skin striated concentrically and covered 
with brown papillae. 
This is a fine and large species ; throughout the greater part of its 
length posteriorly, the papillae are more numerous and larger on the two 
sides than on the dorsal and ventral surfaces, and are particularly numer- 
ous at the posterior extremity, which is pointed and not perforated. It 
does not appear to be parasitic. 
Specimens have been obtained at Miltown Malbay by Professor 
Harvey, and at the South Islands of Arran (an adjacent locality) by Dr. 
Ball. Professor Harvey informs me that this species is not uncommon 
under stones in sand-covered rocks at Miltown Malbay. 
S. Harveii , Forbes. 
Two specimens of a Syrinx were dredged in Strangford Lough from a 
depth of 15 to 20 fathoms on an oozy bottom in June last, by Mr. Hynd- 
man and myself. They agree with the S. Harveii , and at the same time 
with the S. granulosus, M‘Coy (Annals, vol. xv. p. 272, pi. 16, fig. 2), ac- 
cordingly as they are viewed by the unassisted eye or by magnifying power . 
The body of the former is described as being “ quite smooth,” of the latter 
“ nearly smooth, very minutely and uniformly granulated ; ” a difference 
which we might expect to find between examples of 2^ and 7 inches in 
