364 
twelve largest in the tentacula about thirty-six sharp and 
equal teeth. The general form of the whole animal much re- 
sembles Onychoteuthis Leachii—a cephalopod of a different 
genus, with which it may be confounded by a casual observer. 
Mr. Ball proposed to name the species Loligo Eblanz.* 
In addition to the foregoing, the following species of 
Loligo have fallen under Mr. Ball’s notice, as occurring in the 
Irish seas :— 
Loligo sagittata var. differing in the shortness of its ten- 
tacula from the figure given by Ferussac. Several speci- 
mens were taken off the coast of Cork by George Allman, 
Esq. 
Loligo vulgaris. 
Loligo media. 
Loligo media var.—easily distinguished by its greater 
proportionate length of body, and by the shortness of its 
tentacula, from the true L. media; in the form of the fin ter- 
nating its mantle, it strongly resembles Loligo subulata. A 
few specimens, obtained on the coast of Down by the late J. 
Montgomery, Esq., were submitted to Mr. Ball’s inspection 
by W. Thompson, Esq.+ 
Mr. Clarke read a paper “‘ on atmospheric Electricity.” 
The author commenced his paper with a description of 
the apparatus which he had employed in the experimental 
investigation of this subject. He showed the inapplicability 
of the electrometers hitherto employed, and exhibited an 
* The ancient name of Dublin. 
{ Since the foregoing was written, Mr. Ball was favoured with an inspection 
of Cuttle-fish bones, found at different times on Magilligan Strand, county of Derry, 
by Mr. Hyndman, of Belfast. They seem to be those of Sepia rupellaria, figured in 
Ferussac’s third plate of Sepia. His attention was also directed to beaks of Cuttle- 
fish, found in the stomachs of Delphinus melas and Hyperoodon bidens. They 
belonged to a species of Cephalopod he has not yet determined. As he purposes 
writing a monograph of the Cephalopoda of the Irish seas, he requests information 
on the subject from all who can afford it. 
