7238 Mollushs. 



as. far as I could judge, a solitary voice was heard, and then a few together. There 

 was little variation in the sound, which was of a deep tone, more like the rumbling of 

 a drum or organ than anything else. Nevertheless, whether it was fancy or not, there 

 was something pleasing, and even musical, in the sounds as they became slowly or 

 suddenly distant or near, with the retreat or approach of the band. I have no doubt 

 that this drumming sound came from one of the Sciaenoids, probably akin to the Po- 

 gonias ; but the fish was never seen or caught near the ship where its voice was heard. 

 Amongst the numerous varieties offish brought on shore on hauling the seine at Mal- 

 donado Bay, several were occasionally caught resembling the Pogonias Chromis, 

 varying in weight from 40 to 60 tbs. — From the ^ Athenaum.' 



Singing Fish. — On the broad expanse, or bay of the Tagus, which extends from 

 Cacilhas-Point to Aldea-Gallega, I have heard proceed from the water (and apparently 

 close under the boat), on several occasions, sounds resembling the vibrations of a deep- 

 toned bell, gong or pedal-pipe of an organ. The boatmen seemed to know them well, 

 and generally exclaimed " The Corvinal " This is a large fish with black fins, which 

 is, I believe, to be met with occasionally in the Lisbon market. — Id. 



The Mollusca of the Firth of Clyde. By the Rev. Alfred Merle 

 Norman, M.A. 



(Continued from p. 7213.) 



Fam. XIV. NaticidcB. 



Natica moiiilifera. Sandy beaches and bays ; but not common. 

 *N. nitida {Natica glaucina and N. Alderi). Common \ the speci- 

 mens are mostly of small size. 



N. sordida. This species is recorded by Forbes and Hanley as 

 having been taken, by Mr. M' Andrew, " off Arran, in Scotland, in 

 twenty-five fathoms." The specimens, which I have seen, I find were 

 taken on the western side of Arran — that is, in Kilbrannan Sound, and 

 not in the district under consideration. I have also myself procured 

 the species in Loch Fyne, so that it will probably be hereafter met 

 with in the Firth of Clyde. 



N. Montagui. Common in the deeper parts of the laminarian 



and in the coralline zone among nullipore. The specimens mostly 



small. 



Fam. XV. Velutinida. 



*Velutina laevigata. A few specimens near the Tan Buoy, Cumbrae, 

 andJu Lamlash Bay. It appears scarce. Mr. Kennedy meets with 

 it at Gowrock, Naturalist, vol. ii. p. 88, 1852. 



Lamillaria perspicua (Cariocella perspicua). One living specimen 

 from the large rock-pool at the Allans, Cumbrae. Dr. Landsborough 

 recorded it from Lamlash. 



