DAK 
BIBLIOGRAPHY OF FISHES 
291 
— The problem of sea fish hatch- 
ing. Rapp. Cons. Perman. Intern. Ex- 
plor. Mer, 1909, 10 B, no. 5, 1-40. 13 
figs. 1909.2 
The scales of the herring as a 
means of determining age, growth and 
migration. Rept. Norw. Fish. Mar. 
Invest., Bergen, 1909, 2, no. 6, 1-56. 
3 pls. 1909.3 
Sild og laks [Herring and sal- 
mon] Rept. Norw. Fish. Mar. Invest., 
1909, 2, pt. 1, 1384-147. 1909.4 
Vor kundskab om aalens for- 
plantning og vandringer (Unsere Kennt- 
nis von der Fortpflanzung und den 
Wanderungen des Aals} Naturen, Ber- 
gen, 1909, 33, 20-29. 1909.5 
Alder og vekst hos laks og orret 
belyst ved studiet av deres_ skjael. 
Kristiania, 1910. 115 p. 10 pls. 8°. 
1910.1 
Landbruksdepartementet. 
At head of title: 
Age and growth of salmon and 
trout in Norway. London, 1911. 141 p. 
10 pls. 1911.1 
Opgover for studiet of fiskens 
tilvetest, von ferskvand. Norsk Fis- 
kerit., Bergen, 1911. 1911.2 
Nogle opgaver for studiet af 
fiskens -tilveekst 1 vore ferskvand ,Auf- 
gaben des Studium des Wachstums un- 
serer Siisswasserfische] Norsk Fiskerit., 
Bergen, 1912, 31, 135-151. 1912.1 
Dahl, Knut, Damas, D., & Sund, 
Oscar. Fiskenes alder og vekst [Age 
and growth of fishes] Rept. Norw. 
Fish. Mar. Invest., 1909, 2, pt. 1, 132- 
133. 1909.1 
Dahl, Anut, & Dannevig, Gunder 
Mathiesen. Undersogelser over nytten 
af torskeudklekning 1 ostlandets fjorde 
(Investigations upon the utility of 
hatching cod-fish in the eastern fjords of 
Norway] Aarsberetn. Norges Fiskerier, 
Bergen, 1906, 1-121. 1906.1 
Dahl, Knut, & Hjort, Johan. See 
Hjort & Dahl. 
Dahl, Svend. Bibliotheca zoologica 
Danica, 1876-1906. Kobenhayn, 1910. 
262 py (8°. 1910.1 
Dahlberg, August. Kyrkstadin ka- 
lankasvatuslaitoksesta. Suomen Kalas- 
tus Lehti, 1897, 6, 17. — Fiskeritidskr. 
Finland, 1897, 6, 17. 1897.1 
Dahlgren, Ulric [{1870—] The 
giant ganglion cells in the spinal cord 
of the order Heterosomata Cope (Ana- 
canthint pleuronectoidet Giinther) Anat. 
Anz., 1897, 13, 281-293. 4 figs. 1897.1 
The giant ganglion cell appara- 
tus. Journ. Comp. Neurol., 1898, 8, no. 
3, 177-179. 1898.1 
The maxillary and mandibular 
breathing valves of teleost fishes. 
Journ. Morphol., 1898, 14, 117-124. — 
Zool. Bull., 1898, 2, no. 8, 117-124. 3 
figs. — Science, 1899, n. s. 9, 313. 
1898.2 
A new type of electric organ in 
an American teleost fish, Astroscopus. 
Science, 1906, n. s. 23, 469-470. 1906.1 
The luminous organ of a new 
species of Anomalops. Science, 1908, 
n. s. 27, 454-455. 1908.1 
The oral opening of the nasal 
cavity in Astroscopus. Science, 1908, 
n. s. 27, 993-994. 1908.2 
The origin of the electricity tis- 
sues in fishes. Amer. Naturalist, 1910, 
44, 193-202. 1910.1 
Origin of the electric tissues of 
Gymnarchus niloticus. Carnegie Instit. 
Washington, 1914, Pub. no. 183, 159- 
194. 9 pls. & 9 figs. 1914.1 
Literature, p. 191. 
Dahlgren, Ulric, & Silvester, C. F. 
The electric organ of the stargazer, 
Astroscopus Brevoort. A new form of 
electric apparatus in an American tel- 
eost. Anat. Anz., 1906, 29, 387-403. 
13 figs. 1906.1 
, Daimeries, A. Notes ichthyologi- 
ques (Systeme Landenien et Heersien) 
Ann. Soc. Roy. Malac. Belgique (Bull. 
des Séances), 1888-89, 23, xli—xlii; xlv— 
xlix; ci-civ. Jbid., 24, v-x; xxxix-xliv, 
Jf bid. 26, Ixxiii_Ixxviil. I bid., 27, xii— 
XVi. 1888.1 
Dainelli,G. Appunti geologici sulla 
parte meridionale del capo di Leuca. 
Boll. Soc. Geol. Ital., 1901, 20, 616- 
690. 3 pls. 1901.1 
Dakin, W.J. The osmotic concen- 
tration of the blood of fishes taken from 
sea water of naturally varying concen- 
tration. Bio-Chemical Journ., 1907, 3. 
1907.1 
Note on the biology of teleost 
and elasmobranch eggs. Rept. Brit. 
