2 4 o ANNALS OF SCOTTISH NATURAL HISTORY 



Our captures of Noctuae included Thyatira batis, L., 

 CymatopJioi'a duplaris, L., Leucania pallens, L., Axylia putris, 

 L., Agrotis exclamationis, L., Noctua umbrosa, Hub., Euclidia 

 mi, L., etc. Sugaring did not pay very well, few insects 

 ever approaching it. Many interesting insects belonging to 

 other orders were also obtained, the most local being a 

 female Glow-worm, Lampyris noctiluca, L. 



ON CERTAIN NEW OR RARE ROTIFERS 

 FROM FORFARSHIRE. 



By W. T. Calman, University College, Dundee. 



Plate VIII. 



Notops pygrnseus, n. sp. 



A MINUTE rotifer, which appears to be new, has occurred 

 several times in the water supplied to Dundee from the 

 Monikie reservoirs. It is at once remarkable for its brilliant 

 colour. Through the thick but clear and transparent skin, 

 the body of the animal appears of a light red colour, in the 

 midst of which lies the stomach of a deep blue ; and these 

 colours are perfectly constant in numerous specimens that I 

 have seen over a period of six years. The HEAD is completely 

 retractile within the lorica, and the oral edges of the latter 

 are curved inwards over it when it is withdrawn. The FRONT 

 possesses apparently a single ring of cilia, near the ventral 

 side of which the mouth opens. The foot may be retracted 

 within or protruded from a long tubular sheath which passes 

 obliquely backwards from its orifice. For some little distance 

 from the orifice this sheath is thickened, and this portion of 

 it survives with the rest of the lorical skin when the animal 

 is treated with caustic alkali. Close to the orifice, a short 

 rounded diverticulum is given off from the sheath. The FOOT 

 is soft and flexible, and I have not seen more than a single 

 pointed toe. The STOMACH is very large and studded with 

 large oil-globules. Its upper portion fills the space between 

 the great mastax and the sheath of the foot ; below it curves 

 round ventrally, and is succeeded by a narrower intestinal 



