On the British Roe-deer. 297 



the ventrals, its lower limb wider and boldly sinuous at its 

 origin ? the rest narrow and feebly sinuous. A large photo- 

 pliore behind and slightly below the eye, occluded by skin 

 save for a narrow slit. A row of very small photophores, 

 hardly visible externally, below the middle line of the side 

 from the head to the caudal peduncle ; another row near the 

 ventrum, trom the thoracic region to tiie anus. Colour 

 velvety black; looped band purplish grey ; barbel grey. 



Total length without caudal fin and lower jaw (in type) 

 172 mm. 



We are indebted to our friend Professor MacBride for 

 sections of a part of the looped band. Preliminary examina- 

 tion shows a cord of apparently glandular tissue, oval in section, 

 covered with a thin membrane and lying in a groove of the 

 skin, of which the black pigment is continue! throughout 

 the groove. We find nothing in the structure to suggest 

 that the band is a lateral line, though its position suggests a 

 derivation from that organ, which in its ordinary form is 

 absent from both species of Grammatostomias. We have 

 ascertained from the authorities of the U.S. National Museum 

 and Dr. Brauer that the type of G. dentatus and the material 

 of closely allied forms taken by the ' Valdivia' are sufficiently 

 perfect to make it certain that none of them possessed any 

 structure in the nature of the looped band, which appears to 

 be a luminous organ. 



XXXIII. — The British Roe-deer (Capreolus capreolus 

 thotti) , a preliminary Diagnosis. By Dr. ElNAR Lonnberg, 

 C.M.Z.S. &c. 



A FEW years ago my friend Oount Tage Thott mentioned to 

 me that he had seen some British Roe-deer which appeared 

 to him to be different to the Swedish which constitute the 

 type of Linnaeus's species. 



During a sojourn in London this summer I had the 

 opportunity of ascertaining the correctness of Count Thott' s 

 observation by studying, with the kind permission of 

 Mr. Oldfield Tiiomas, the material of British Roe-deer in the 

 British Museum Nat. Hist. I am thus able to give the 

 following short preliminary diagnosis, and hope to have the 

 opportunity in the near future to publish a more complete 

 description accompanied by some figures. 



The British Roe-deer, which appears to be somewhat 

 Ann. & Mag. N. Hist. Ser. 8. Vol. vi. 20 



