EARVAL AND POST-LARVAL FISHES—REGAN. 145 
SCARIDAE. 
Cryptotomus ustus, Cuy. and Val. (Pl. VIII, fig. 6). 
Dorsal 1x, 10. Anal 12. Vertebrae 25 (9-10 + 15-16). These little fishes, 
9mm. in total length, evidently belong to the family Scaridae or to the sub-family 
Julidinae ; the structure of the vertebral column and of the vertical fins leaves no 
doubt as to this. The number of fin-rays is somewhat less than in the Julidinae, 
except Doratonotus megalepis, which differs from them in its strong dorsal and anal 
spines, long praemaxillary pedicels, etc. After comparison with numerous species of 
Scaridae I am of opinion that these young fishes belong to Cryptotomus ustus, or to 
some species nearly related to it. 
Station 49. Tropical Atlantic. 18° 51'S., 33° 40’ W. Surface. May 6th, 1913. 
ODACIDAE. 
Odax balteatus, Cuv. and” Val. (Pl. VII, fig. 4). 
In identifying a post-larval fish of 6 mm. with this species I rely on the number 
of vertebrae, 36 (19 + 17) and of anal and caudal rays; the anterior dorsal rays are 
undeveloped, and the pelvic fins have not yet appeared. 
Station 161. Melbourne Harbour. 12 metres. October, 1910. 
LIMNICHTHYIDAE. 
Limnichthys fasciatus, Waite. 
Several young fishes, 16 to 20mm. long; some of the larger ones show the 
characteristic markings of the adult fish. 
Fic. 4,—Limnichthys fasciatus (x 6). 
This species was originally described from adult specimens in full roe, 43 mm. 
long. These were found in rock-pools at Lord Howe Island (Waite, Rec. Austral. 
Mus. V, 1904, p. 178, pl. XXIII, fig. 4), and afterwards similar examples were taken 
from pools near Sydney (Waite, t.c. p. 243). As Lord Howe Island is 600 miles from 
the coast of New South Wales, one might have inferred that the species was oceanic at 
some period of its life. This is proved, and its known range extended by its capture at 
or near the surface to the north of New Zealand, off the Three Kings Islands, and also 
midway between these two localities. 
Station 120. 34° 26’8., 172° 14’ BK. Surface. Aug. 18th, 1911. 
- 130. Off Three Kings Islands. Surface. Aug. 27th, 1911. 
, 133. - Spirits Bay, nr. North Cape, N.Z. 20 metres. Aug. 30th, 1911. 
_ itera He Bs 3 metres. Sept. Ist, 1911. 
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