Oh ihf lirih'fh Hoe-deer. 2!)7 



tlie vci\tr;ils, its lower limit \vitl(>r and lioldly sinuous at its 

 origin, the rest narrow and fecldy sii\uou.s. A lar^c plioto- 

 pliorc behind and sli^^htly below the eye, occlu led l)y skin 

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

 hardly visible externally, below the niiddli', line of the side 

 from the head to the camlal pcduuele; another row near the 

 ventrum, trom the thoracic roj^ion t) tiie anus. Colour 

 velvety black ; looped band purplish urey ; barbel p^rcy. 



Total len;^th without caudal tin and lower jaw (in type) 

 172 mm. 



We are indebte 1 to our friend Professor ^[acBride for 

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

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

 covered wiili a thin membrane and lyin^ in a groove of the 

 skin, of which the black pigment is continuci throughout 

 the groove. We find nothing in the structure to sugg st 

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

 derivation fioiu that organ, which in its ordinary form is 

 absent from Ijoth species of G vamvuilostomias. We have 

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

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

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

 perfect to make it certain that none of them possessed any 

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

 be a luminous 0)gan. 



XXXIII. — The British Roe-deer (Capreoliis capreolus 

 thotti) , a prdiihinary Diagnosis. By Dr. EiNAU LoNNBEKG, 

 C.M.Z.S. &c. 



A FEW years ago my friend (/ount Tage Thott mentioned to 

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

 to him to be ditVerent to the Swedish which constitute the 

 type of Linna'us's species. 



During a sojourn in London this summer I had the 

 ojtportunity of ascertaining the correctness of Count Thott's 

 ol)servation by studying, with the kind permission of 

 Mr. Oldtield Thomas, the material of British Roe-Jeer in the 

 British ^Iu30U(U Nat. Hist. I am thus able to give the 

 following short preliminary diagnosis, and ho[>e to have the 

 ojtportunity in the near future to ]»ubli-sh a more complete 

 description accompanied by some figures. 



The British Roe-deer, which appears to be somewhat 

 Ann. iL Mo'j. S. Hist. Ser. >>. \'ul. vi. 20 



