THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTOilY. 



[EIGHTH SERIES.] 

 No. 5. MAY 1908. 



LXII. — Notes from the Gatty Marine Laboratory, St. An- 

 drews.— ^o.' XXIX. By Prof. M'iNTOSH, M.D., LL.D., 



F.R.S., &c. 



[Plate XVII. 



1. On a Tumour in a Plaice. 



2. On the Britisli Opheliidce, Sealibregmidie, and Telethmte. 



3. On the same Families in the ' Porcupine ' Expeditions of 1869 and 



1870. 



4. On the foregoing Families dredged by Dr. Whiteaves in the Gulf of 



St. Lawrence, Canada. 

 6. On the same Groups dredged in Norwegian Waters and in Finmark by 

 Canon Norman. 



1. On a Ttimour in a Plaice. 



On the 13fch November, 1907, a fislierman (James Gourlay) 

 brought a plaice about 10^ iiiclies in length and normal in 

 coloration which presented on the right side above the lateral 

 line an elongated elastic swelling. The tumour was some- 

 what irregularly elevated, and at first sight it resembled, 

 from the irregular prominences, the condition resulting from 

 an injured or diseased spine. On the left or white surface 

 the tumour was more uniformly elevated, forming an elon- 

 gate-ovoid mass 3^ inches in its long or antero-posterior 

 diameter, and If inch in its transverse at the widest part, 

 which was median. It was slightly narrowed at each end 

 and of the same soft elastic nature as on the dorsum. On 



Ann. i& Mag. N. Hist. Ser. 8. Vol. i. 25 



