LARVAL AND POST-LARVAL FISHES—REGAN. 137 
intestine very long and supported behind by a cartilaginous rod. A series of seven 
dark spots along the back. 
Tropical Atlantic. Station 49. 18° 51’S., 33° 40’ W. Surface. May 6th, 1913. 
Stylophthalmus paradoxus, Brauer. 
A larva, 6 mm. long, of the type figured on pl. V, fig. 5, of the Valdivia report. 
South Atlantic. Station 311. 35°29'S., 50° 26’ W. 2 metres. April 22nd, 1913. 
GONOSTOMATIDAR. 
Cyclothone microdon, Giinth. (Pl. V, fig. 5). 
Several examples 6 to 8 mm. long have the fins fully developed, but the head is 
intermediate between that of the Gonostomatid larva figured by Holt and Byrne 
(Fisheries Ireland Sci. Invest. 1912, I, pl. II, fig. 5), and that of the adult fish, the 
maxillary not extending back beyond the eye. I count 12 dorsal and 16 anal rays 
and 30 myotomes. 
Tropical Atlantic. Station 39. 6 miles off mouth of Rio de Janeiro Harbour. 
2 metres. April 27th, 1913. 
South Atlantic. Station 311. 35° 29'8.,50° 26’ W. 2 metres. April 22nd, 1913. 
Vineiquerria lucetia, Garm. (PI. V, figs. 6, 7). 
Seven examples, 8 to 10 mm. in total length, differ from the adult fish in that 
they are more slender and the photophores are not developed; also the mouth is 
smaller. A specimen of 15 mm. has the lower series of photophores developed, but 
the upper series is incomplete. All are from the Atlantic, taken at the surface. 
Station 45. 21°S., 37°50’ W. May 4th, 1913. Station 50. 18°S., 31° 45’ W. 
May 7th, 1913. Station 68. 27° 22’ N., 33° 40' W. May 28th, 1913. 
INIOMI. 
SYNODONTIDAE. 
Synodus synodus, Linn. (Pl. VU, fig. 4). 
A larva of 14 mm. differs from those described by Max Weber (Siboga Fishes, 
p. 82, fig. 28) in having 13 patches of dark pigment on each side of the gut instead of 
‘11. Probably this is a specific difference distinguishing the Atlantie S. synodus from 
the Indo-Pacifie S. varius. I count 60 myotomes and 9 anal rays. 
Station 46. 20° 30'S., 36° 80’ W. Surface. May 4th, 1913. 
SUDIDAE. 
Prymnothonus, Richards. 
The only larvae known to belong to this family are of the type described as 
* Prymnothonus ” (Giinther, ‘‘ Challenger” Pelagic Fishes, p. 39, pl. V, 1889). These are 
