32 



Mr. H. F. Stn.nding on March 19tli. From an examination of 

 cranial casts of an extinct species of Lemur and of Mesopro- 

 pithecus and Palaiop>ropithecus, and of brain-casts of Nesopithecus 

 and Meguladapis, in conjunction with information derived from 

 the study of recent Lemurs, the Author had arrived at the con- 

 clusion that Pi'opithecus, AvciMs, Indris^ Mesoproijithecus, Neso- 

 pithecus, Fcdceopro'pithecus, Chiro'niys, and Megaladapis must be 

 leyarded as the diversely specialised members of one family, all 

 of which exhibited in greater or less degi'ee distinct evidence of 

 retrogressive changes from a moi'e pi-imitive and also more pithecoid 

 type. 



Some Notes on the Abdominal Viscera of Chlamydoselachus, 

 contributed by Mrs. O. A, Mereitt Hawkes, M.Sc, comprised 

 observations on the alimentary canal, including the associated 

 glands, the dentition, and the spiral valve of this Fish. The 

 results were compared with the accounts of these organs previ- 

 ously given by Garman and Giinther, and attention was directed 

 to any discrepancies which had been noted. The female repi'o- 

 ductive organs were also examined, and evidence was cited 

 supporting the conclusion that Chlamydoselachtis was viviparous. 

 The interesting discovery was recorded that a vestigial seventh 

 bi'aiichial arch was pi-esent. 



Mr. G. A. BouLENGER, F.R.S., read a second Report on the 

 Batrachians and Reptiles collected in South Africa by Mr. C. H. 

 B. Grant, and presented to the British Museum by Mr. C. D. 

 Rudd. The Report dealt with 58 species — 19 Batrachia and 39 

 Reptilia — of which two were described as new. 



Mr. James Ritchie, M.A., B.Sc, of the University of Aberdeen, 

 communicated a paper on the Hydroids of the Cape Verde Island 

 Marine Fauna collected by Mr. Cyril Crossland, F.Z.S. The col- 

 lection contained 27 species, and added considerably to our rather 

 meagre knowledge of the Hydroid fauna of the northerly portions 

 of the West Coast of Africa. The maajority of the specimens 

 hitherto described from Cape Verde Island had been obtained 

 in comparatively deep water, but the present collection was a 

 littoral one, and contained examples of only one species before 

 I'ecorded fi'om the locality, viz. Sertidaria versluysi Nutting. Of 

 the 27 species represented in the collection 18 were already 

 known, while the remaining 9 were described as new to science. 

 Of the new forms the most interesting was a Gymnoblast, the 

 peculiar branching and simple gonophore of which separated it so 

 widely from known genera that a new genus had been established 

 for it. 



