SE8SILIA. 417 



base of the rocks, thus reminding one of coral islands. No other species 

 is anywhere (that I looked) intermixed with it. 



Springvale, Down, July 16, 1846, W. T. 



None are found far up the Belfast estuary, where the water is brackish. 



April 29th, 1840. 



li. punctatiis, Mont. Every object on the beach at Craigavad, Belfast 

 Bay, was profusely covered with the young of this species (or what I con- 

 sider as such) wherever they could remain stationary, as for instance in 

 the furrows of the clam-shell [Pectvu viaxinnis), though on the elevated 

 ridges none rested. They were so yoimg (l-20th of an inch in length) as 

 to give a beautifully beaded appearance to the furrows of this shell. I 

 have similarly remarked them in the spring of the year covering over every 

 object on the beach at the island of Ireland's Eye, on the coast of Dublin. 

 The young as noted here on April 19, 1835, is the Lepas convexida, Penn. 

 I subsequently saw that Dr. Johnston was also of that opinion (Berwick 

 Club Proceedings). 



B.jnmctatus, April 14, 1848. 



I brought some on stones and limpets here from Cultra, for the pur- 

 pose of keeping them until they would produce young. From the first 

 day I brought them home — in a large botanical box packed in wet Fiici — 

 they threw off the shuttlecock-like exuvi* in quantity, but these only 

 during the first Aveek. 



Sept. 29th, 1848.* 



I examined a great number of Balani this evening, in reference to the 

 growth made by them during the present season, and found it to average 

 '6 lines diameter at base — the largest 4 lines. I saw a few minute ones 

 only 1 line in diameter, implying that the species continued to breed until 

 lately ; these were not more, probably, than four weeks old. The young 

 of the year are indelihly marked from the older ones, by their pure white- 

 ness and fresh appearance. Judging from the size of this year's speci- 

 mens, and of the older on the same stone, I am of opinion that the term 

 of life of the species is two years ; but another year's examination (if I 

 live myself) will enable that point to be determined. Nearly all the adults 

 on the rocks from which Mr. Darragh* and I took specimens in spring are 

 dead, with the valves washed away, and' the outer shell only remaining. 

 This is the case with 9-lOths of the adults which I saw living on the shore 

 here in spring. 



July ;3rd, 1848. 



I measured several Balani on a large stone, with the view of ascertain- 

 ing their rate of growth. 



Sept. 30th, 184S. 



Those of 2^ lines diameter and upwards then, were now 4|, the 

 maximum size of the species on the stones examined to-day. 



B.Jistulosus, Lam. 



Magilligan and Dundalk, Mr. Hyndman. 

 Rocks below Bantry Bay, rare, Turt. Cat. 

 Cork Harbour, Mr. Humphreys. 



B. Alcyonii, Turt. (sp.), 



Balani adherent to the tube of an annelid [Syllis armillnris ?) dredged 

 off St. John's Point, Co. Down, 15 fathoms, by Mr. Hyndman, I take to 



* The Curator, Belfast Museum.— Ed. 

 2 E 



