15 



Author dealt with tlie geneva Chromodovis^ Casella, C'eraiosoma, 

 Sphcerodoris, Miatnira, and Orodoris, and gave details with regard 

 to tv/enty-two species, eight of these being described as new. 



The new species were in colour as follows, all belonging to the 

 genus Ghromodoris : — 



Chromodoris sykesii. — Dorsal surface bright orange, passing 

 into light yellow towards the edge of the mantle, round which is 

 a double border of reddish brown internally and bright violet 

 externally, with numerous rings of opaque white on the back. 



C. CAViE. — Yellowish white with drab blotches. Edges o? 

 mantle and foot bordered with light violet. On the back are 

 black spots sui'rounded by a white line, also orange spots. Foot 

 white, with orange and black spots. 



0. ANNITLATA. — Upper surface white, studded with yellow spots 

 Round the margin a border of deep purple. 



0. SPLBNDENS. — Colour Varying, being produced by thick col- 

 lections of purple and white dots, in difierent pi-opoi'tions in 

 different places. A vivid orange border round the body. 



C. viciNA. — Mantle and foot bordered with light violet. Middle 

 of the back drab-brown with violet spots. Edge of mantle and 

 foot spotted with yellow. 



0. NiGROSTRiATA. — Yiolet-blue grey, with blotches of light 

 primrose-yellow. On the back and sides of foot are distinct 

 curved black lines. 



C. INCONSPICUA. — White with opaque white spots and a few 

 brown ones in the middle of the back. Akin to C cdhonoiata B. 



0. FLAVA. — Bright lemon-yellow, with a blood-red border round 

 he mantle-edo-e. 



A communication from Mr. Robert T. Leiper contained a 

 detailed account of the Turbellarian Avagina incola, which had 

 been described as new to science at the Meeting of the British 

 Association at Belfast in 1902. This Turbellarian had been 

 found in the accessory canal of several specimens of the Common 

 Heart-Urchin, Echinocardiimi cordaiimn, collected from Karnes 

 Bay, Cumbrae, IST.B., in the summer of that year. As well as 

 form.ing the type of a new genus and species, it was of interest 

 as being the only recorded example of distinct parasitism among 

 the Acoelous Turbellaria. A note on the classification of the 

 Proporidai was also included in the communication, iu which it 

 was proposed by the Author to divide this family into two sub- 

 families : (1) the Proporinte, to include those genera with a 

 common genital atrium, viz. Proponis, Monoj^orus^ and Bolmiigia ; 

 and (2) the Avagininae, to compiise those genera with male 

 accessoria onl}', viz. Haplodiscus and ArcKjina. 



