ScHARFF — On Some Irish Fishes. 
457 
Fork-beard — Phyeis hiennioides, Briinn. Three speciniens. 
Three-bearded Eockling — Motella tricirrata, Bl. Three young speci- 
mens from Yalentia harbour. 
Five-bearded E,ockling — Motella mustela, L. One young specimen. 
Whiff — Rhomlus megastoma, Donov. One young specimen. 
Scald-fish — Arnoglossus laterna^ Walb. One specimen from Station 3. 
Plaice — Pleuronectes platessa, L. One young specimen from Station 26. 
Dab — Pleuronectes limanda^ L. One young specimen from Station 40. 
Smooth Dab — Pleuronectes microcephalus, Donov. One young specimen. 
Worm Pipe-fish — Nerophis lumhriciformis, Willugh. One specimen. 
1888. 
The greatest depth reached in the expedition of 1888 was 1080 
fathoms ; and the result was very gratifying. A specimen of one of 
the most typical deep-sea families of fishes (Alepocephalidae) was 
brought up in the trawl. Another interesting form (Stomias) disco- 
vered, is a beautiful example of a deep-sea fish with luminous organs. 
These organs, which are present in two rows of eye-like spots, have 
been minutely described by Lendenfeld in Dr. Giinther's Report on 
the Deep-sea Pishes collected by the Challenger expedition. Dr. Griin- 
ther believes that, in the more specialized luminous organs, production 
of light is subject to the will of the fish, and that they are used by 
them as ''bull's-eyes." Deep-sea fishes, such as Macrurus, of which 
also a specimen has been obtained, have their muciferous system well 
developed ; and as they have no luminous organs, it is supposed that 
the mucus of the fish supplies the luminosity. The Stomias, referred 
to above, possess a barbel, tipped with a diffuse patch of luminous 
substance which, according to Dr. Giinther, may act as a lure to other 
fishes. 
Most of the deep-sea fishes are either black, pink, or silvery. 
One littoral species of fish (Gobius) is new to science, and the 
species of Haloporphyrus is new to the Irish deep-sea Pauna. 
The following fishes were collected : — 
Ked Gurnard — Trigla cuculus, Bloch. One half-grown specimen from 
33 fathoms. Station 2, and another from 24 fathoms. Station 71. 
Common Dragonet — Callionymus lyra, L. One adult male specimen 
from 24 fathoms, Station 71, and a young one from 33 fathoms, 
Station 2. 
Freckled Goby — Golius minutus, L. One specimen from 24 fathoms, 
Station 71, and another from 5 fathoms, Station 70. 
E.I. A. PEOC, SER. III., VOL. I. 2 K 
