384 
BULLETIN OF THE BUREAU OF FISHERIES 
Page 
Symphurus plagiusa (Linnaeus) . Tongue- 
fish; sole 476 
Spawning 477 
Development of young 477 
Distribution of young 481 
Growth 482 
Page 
Monacanthus hispidus (Linnaeus). Fool- 
r x , . 
fish 482 
Spawning 482 
Development of young 483 
Distribution of young 486 
Growth 486 
Bibliography 487 
INTRODUCTION 
A special study of the development and the growth of teleosts in the vicinity 
of Beaufort, N. C., was begun in the spring of 1926. This investigation has been 
continued, as other duties permitted, to the present time (March, 1930). The work 
was conducted under the direction of the senior author who at first was assisted by 
Irving L. Towers, formerly junior aquatic biologist, Bureau of Fisheries, and since 
the summer of 1927 by Louella E. Cable, the junior author. Dr. James S. Gutsell, 
associate aquatic biologist with the bureau, too, rendered important service, for he 
did nearly all the offshore collecting, mentioned subsequently, and at times sorted 
collections and assisted in making measurements and preliminary identifications. 
Irving L. Towers served as collector and general assistant during the first year 
of the investigation. Mr. Towers prepared most of the drawings, illustrating the | 
development of the pigfish and the anchovy, accompanying this paper, and he also 
made many of the measurements used in the tables. Mr. Towers was succeeded by 
the junior author who prepared all the drawings, exclusive of those already men- 
tioned. She also assisted in collecting and identifying specimens. She made most 
of the measurements used in the tables, drew the graphs, and carefully reviewed the 
manuscript. The senior author is responsible for the final identification of specimens, 
for any errors that may be included, and the conclusions drawn from the data presented. 
In general, only those species for which fairly complete series of specimens 
showing the development, at least of the young, have been obtained and studied are 
included in this paper. Many others for which the information is less complete are 
being held for further study and future report. Although the investigation is to be 
continued, it nevertheless seems advisable to make available to others the information 
gained relative to the species included in this paper. The stages in the development 
of the forms discussed, at any rate, are fairly completely shown. Little or no hope 
is entertained of soon getting the eggs of the species reported upon in this paper 
for which they have not already been obtained. It seems quite evident that the 
eggs either must be sought by a new method of collecting or in areas not yet explored 
with the apparatus used. On the other hand, eggs have been obtained of a few species 
not reported in this paper for which all the stages in development either of the egg or 
the young or both have not yet been found or studied. 
METHODS 
The collection of specimens and life history data was begun in the spring of 
1926, as stated elsewhere, and continued more or less regularly to the present time 
(March, 1930). Specimens were collected at various places in Beaufort Harbor and 
its many arms, including two large estuaries and numerous bays, creeks, and ditches. 
Occasional collecting trips also were made in Bogue and Core Sounds, both connected 
with Beaufort Harbor. The principal collecting stations are shown on the chart. 
(Fig. 1.) All of these waters, except for Ocracoke, Beaufort, and Bogue Inlets, are 
