50 Proceedings of the Royal Physical Society. 
Body and fins speckled dark grey on a silvery grey background ; black spot 
on shoulder and on tip of snout; several indistinct and irregular cross bars on 
the body. Description based on six examples, 244 mm. to 274 mm. in total 
length. The Indo-Pacific form (Sawrus varius Giinther) 1s closely allied to 
this species, but differs in having longer pectorals and pelvics, fewer dorsal 
Fie. 2. Synodus synodus, 
Reproduction of coloured drawing by Mr Cuthbertson—from fresh specimen, 
Fies. 3 and 4. 
Side view of two specimens of Synodus synodus, 
and anal rays, body more elongate, and coloration lighter. Sawrus 
meleagrides Val., from Buenos Aires, is also nearly related. The ‘pectorals 
are longer, and the dorsal and anal rays are different. It is figured in 
D’Orbigny’s Voyage dans Amérique méridionale. 
There seems sufficient proof that the “Scotia” specimens are identical 
with those described from St Helena and from Bahia by Cuvier and 
Valenciennes, 
