512 



By Oswald B. Lower, F.E.S. Forty species, referable to the Bombycina, 

 Geometrina, Pyralidina, Tortricina, Tineina (Œcopkoridœ, Gelechiadce, Elachis- 

 tidœ, Tineidce), are treated of, thirty-seven being described as new. — 2) On 

 Didymorchis, a Khabdocoele Turbellarian inhabiting the Branchial Cavities 

 of New Zealand Crayfishes. By Professor William A. Haswell, M. A., 

 D.Sc, F.R.S. Dtdymorchis attracted notice during a search for allies of the 

 Temnocephaleœ ; and is probably the nearest known relative of the group in 

 question. The animal is about 1 mm long and less than y 3 mm in greatest 

 breadth; and as far as observed is practically an invariable companion of 

 the Crayfish Paranephrops setosus, though not occurring in large numbers. 

 A remarkable feature is that cilia are developed only on a portion of the 

 ventral surface of the body, and are entirely absent round the margin and 

 on the dorsal surface. On the whole the animal seems to make a nearer 

 approach to the Vorticida than to any of the other known groups. — 3) Sup- 

 plement to a "Monograph of the Temnocephaleœ". By Professor William 

 A. Haswell, M.A., D.Sc, F.R.S. Three additional species of Temnocephala 

 are described — T. tasmanica, allied to the much larger T. quadricornis, 

 occurring in the branchial cavities and occasionally on the external surface 

 of Astacopsis tasmanicus ; T. aurantiaca found upon the lower surface of the 

 abdomen of a Tasmanian Astacopsis at present undetermined; and T. cœca 

 found upon the surface of the remarkable burrowing Isopod, Phreatoicopsis 

 terricola, Spencer and Hall. The paper concludes with some remarks on 

 certain points in the structure of the members of the family, mainly suggested 

 by Monticelli's recent paper (Bolletino della Soc. di Nat. in Napoli. XII. 

 1898). — 4) and 5) Botanical. — Mr. D. G. Stead exhibited a specimen 

 and described the effluvium-producing powers of the so called "Stink-Fish", 

 Callionymus curvicornis, C. & V., from Port Jackson; he also showed an unde- 

 termined snake which was found coiled up in a bunch of bananas imported 

 from Fiji. 



Druck von Breittopf & Härtel in Leipzig. 



