132 Proceedings of the Royal Irish Academy. 



Coelorhynclms coelorhynclius, 21 ; 100 ; Coelorhynclius lahicdus, 24"5 : 100 ; 

 Lionurus aequalis, 13'4 : 100 ; the proportions being taken from apparently 

 uninjured specimens. 



The total numbers of light bands, and the numbers corresponding to the 

 spaces between the rings, are also given. The central bands cannot always 

 be accurately counted, but their numbers have been estimated, the estimated 

 figures being given separately from those definitely counted, e.g. ca. 3 + 14 

 represents three doubtful and fourteen counted bands. The exact relation 

 between the bands and rings is often difficult to see, and the number of 

 bands to the spaces between the rings may easily be over- or under-estimaied 

 by one band. 



Coryphaenoides nqjcstris (PI. VII, fig. 1). 



Three specimens showed rings on their scales arranged as follows (averages 

 taken from 3 or 4 scales) : — 



Length No. of 



in cm. 



bands. Bands to spaces. 



(a) 50-5 ... 198 ] 333 | 385 | 439 | 472 | 492 | .505 ea. G + 18 8 | 6 | 3 I 2 | 2 | 2 | 1 



(b) 31-3 ... 75 I 128 | 19.5 | 239 | 310 12 



(c) 29 ... 77 I 125 | 150 | 290 8 



b and c have for their size more rings than a. Possibly the inner rings 

 have been lost or obscured in the largest specimen. 



Coryphaenoides Murrayi (PI. VII, fig. 3). 



Only one specimen, length ol'O cms., had retained a few scales. 1'hese 

 showed two faint rings on the outer part of the scale, with the average 

 arrangement of 318 | 436 ] 510. Nineteen or twenty bands were present, 

 of which six corresponded to the space between the inner ring and the margin, 

 the inner ring coinciding with a slight broadening of the bands. 



CoelorhyncJiHS coclorJiynchus {Fl. Yll, fig. 2). 



This species does not show the rings as clearly as C. lahiatus, though 

 occasionally well-marked specimens were met with : — 

 Length No. of 



in em. 



■ ■, Bands to spaces. 



(a) 89-8 ... 122 | 255 | 306 | 337 | 357 : 368 | 383 | 398 ca. 6+19 2 | 2 | 1 



(6) 40-8 .. 227 I 309 | 317 : 343 | 368 | 384 | 396 : 408 ca. 5 + 19 11 | 4 | 2 ] 2 | ... 



(e) 37-5 ... 203 : 282 | 322 | 357 | 375 ca. 2 + 20 17 | 2 | 2 | 1 



(d) 30-0 ... 203 I 256 | 300 ca. 5 + 12 10 | 4 | 3 



(e) 30-2 ... 239 | 302 ca. 4+15 16 | 3 

 y) 300 ... 225 I 300 ca. 3 + 12 



[g) 27-6 ... 125 | 201 | 276 ca. 4 + 11 7 | 4 | 4 



(Ji) 28-4 ... 246 I 284 ca. 2 + 8 10 | 2 



