254 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



The mouth seemed to open comparatively early, since it formed a conspicuous 

 aperture on June (!. It differs considerably from that of the gadoids, as the mandibular 

 cartilages are much less developed, yet it is proportionally large and the movements 

 extensive. The pericardial chamber was very large in the eyes on the 7th. The large 

 pectorals are used for balancing. Black pigment was developed. The skin is minutely 

 vesicular, and the canary-yellow pigment is conspicuous in the posterior part of the body. 



REMARKS ON THE DEVELOPMENT OF THE BRILL. 



Some remarks were formerly made* about the development of the ova of the brill 

 fertilized with the milt of a turbot. A further series fertilized with a male of the 

 same species was obtained on May 22, 1892. They had a diameter of 1-3335 mm., the 

 oil-globule measuring '228G mm. The latter behaved as in the gurnard, rolling under 

 the periblast and beneath the disk, and passing through the yolk when suddenly 

 inverted. Without going into minute details it may be stated that on the 27th the 

 embryo had lenses and otocysts, the tail projected from the yolk, while a yellowish 

 hue pervaded the head, body, and yolk-sac from the development of numerous chrom- 

 atophores. So numerous are these over the yolk-sac that it seems to be densely 

 speckled all over with minute yellow grains. Black chromatophores are likewise 

 present on this as well as on the body. The remarkable development of the deep 

 brownish-yellow pigment is one of the characteristic features of the species, and the 

 fact was elicited that the milt of the male turbot did not seem to have made any 

 striking variation in hue, so far as could be observed in the embryo and larva. 



LIST OF PAPERS. 



The following list of papers published in connection with the St. Andrews Marine 

 Laboratory might properly include the work on the Invertebrate Marine Fauna and 

 Fishes of St. Andrews! and numerous i>apers published since 1861: 



List of published papers dealing with work done at St. Andrews Marine Laboratory from the opening of the 



Laboratory in 1884 up to and including 1892. 



1. Report I to the Fishery Board for Scotland, 1884. 



2. Report on Trawling at the request of Lord Dalhousie, chairman of the Trawling Commission, 



1884-85. 



3. Report n to the Fishery Board for Scotland, 1885. (1 plate.) 



4. Report in to the Fishery Board for Scotland up to 31st December, 1885. 



5. Report iv to the Fishery Board for Scotland (year 1886), 1887. The foregoing by Prof. Mcintosh. 



6. On the Occurrence of Lumpenus lampetriformis off the east coast of Scotland; by Francis Day. 



Proceedings Zoological Society, 1884, p. 445. (1 plate.) 



7. Notes from the St. Andrews Marine Laboratory, i. a. On the British species of Cyanea. b. On 



the Reproduction of Mytilus edulis. Prof. Mcintosh, Ann. Nat. Hist., Feb., 1885. 



8. Notes from the same, n. On the Spawning of certain Marine Fishes (Herring, Vivaparous Blenuy, 



Catfish, Short-spined Cottus, Armed Bullhead, Bimaculated Sucker and Montagu's Sucker) ; On 

 Pelagic Ova, the Young of the Ling and the Eel. (1 plate.) — Ibid, Ann. Nat. Hist., June, 1885. 



9. Lecture on the Ova of Fishes. — Ibid, Nature, April, 1885. 



10. The Phosphorescence of Marine Animals, the Presidential Address to the Biological Section of 



the British Association, Sept., 1885. Ibid. 



11. Notes from the St. Andrews Laboratory, in. a. Ou the ova of Callionymus lyra. b. On a new 



British Staurocephalus. c. On certain Processes formed by Cerapus on Tnbularia indivisa. d. On 

 certain Peculiar Ova from the Forth, e, On a Female Porpoise. (1 plate.) Prof. Mcintosh. 



12. Note on the Chemical Composition of the Milk of the Porpoise. Prof. Purdie, Ann. Nat. Hist., 



December, 1885, and Chemical News. 



13. On the Development of tlie Pood- Fishes at the St. Andrews Marine Laboratory. E. E. Prince, 



Rep. Brit, Assoc., 1885, p. 1091. 



'Ninth An. Kept. Fishery Hoard for Scotland, til, p. 317. tA. & C. Black, 1875. 



