Dr. A. Giinther on Japanese Sea- Fishes. 485 
millimetre ; it should therefore be considered rather a matured 
Copepod than the earliest form of such a one. If it belongs 
to a Copepod it must spring from an unknown gigantic 
species of a still unknown family; and it is rather strange 
that this gigantic species has not once fallen into my net 
during the course of many years. 
Itajahy, St. Catherina, Brazil. 
June, 1877. 

LVI.—Notes on a Collection of Japanese Sea-Fishes. 
By Dr. A. Gintuer, F.R.S. 
A COLLECTION of fishes, formed by H. Batson Joyner, Esq., 
at Tokei, Japan, and presented by him to the British Museum, 
contained an unusually great proportion of interesting species, 
several of which are identical with those collected during the 
expedition of H.M.S. ‘Challenger’ and noticed in Ann. & 
Mag. Nat. Hist. 1877, xx. p. 433, whilst a few others appear to 
be undescribed and will be noticed hereafter. 
This collection offers additional confirmation of a fact to 
which I have repeatedly drawn attention in the ‘Catalogue of 
Fishes’ and on subsequent occasions, viz. that there exists 
the greatest similarity between the marine fauna of temperate 
Japan and that of the Mediterranean and adjacent parts of 
the Atlantic, Mr. Joyner’s collection containing not less than 
eight species identical in both seas, viz. Rhina squatina, 
Pieroplatea hirundo, Beryx splendens, Beryx decadactylus, 
Hoplostethus mediterraneum, Trachurus trachurus, Brama 
Rait, Exocatus lineatus. 
Sebastes Joynert, sp.n. 
D2 ACS LL. lat. ca. 60. 
The height of the body is equal to the length of the head, 
and one third of the total length (without caudal); scales 
very thin, scarcely serrate, a little smaller above the lateral 
line than below it; on the upperside of the head they ad- 
vance to the nostrils and cover the preorbital and maxillary. 
Snout short, three fourths of the diameter of the eye, which 
is three tenths of the length of the head, and exceeds by 
one third the width of the interorbital space, which is flat. 
Upper surface of head smooth, scarcely armed, the two occi- 
pital ridges very low and terminating in short spines; pree- 
orbital with two flat spines ; preoperculum with five spines, 
