1909.] ox MARIXE FAUXA FROM KERIMBA ARCHIPELAGO. 913 



5. Marine Fauna from the Kenniba x^rcbipelago, Portuguese- 

 East Africa, collected by Jas. J. Sim[)son, M.A., B.tSc, 

 and ]l. N. Rudmose-Brown, B Sc, University oi: 

 Aberdeen : Madreporaeia. By Ruth M. Harrison 

 and Margaret Poole *. 



[Received October 19, 1909.J 



This Collection was made between September 1907 and May 

 1908, and contains two species of Tnrbinolid;>3, four species of 

 Fungiida?, four species of Astraeidse and one species of Eupsam- 

 miidfc. 



We are indebted to Dr. Bourne for much help and advice 

 during the progress of the work. 



Family T u R b i x o l i n .e Milne-Edwards & Haime. 

 By Margaret Poole. 



Genus Heterocyathus Milne Edwards & Haime. 



Heterocyathus .equicostatus Milne-Edwards & Haime [19]. 



This species has been fully described by me in the account of 

 the Turbinolidae from the jVIergui Archipelago, Lower Bui'ma. 

 It contains three well-defined types diflfering from each other in 

 the number and characters of the sejita and pali, the general 

 shape of the corallum, the depth and size of the caliculai- fossa 

 and the position of tlie lateral pores. All three varieties are, 

 however, connected l)y beautifully iiitei'mediate forms, as is 

 shown in a photograph in the paper refei'red to above. 



The collection contains ten specimens, of which four belong to 

 type II. and six to type III. ; the first type being unrepresented. 



Localities. — Station I. Tunghi Bay. Bottom : sand, mud, and 

 shell. Depth : 5-18 fathoms. 2 specimens of type II. and 4 of 

 type III. — Station VI. Kero-IS'yuni Bay. Bottom: sand. Depth: 

 5-10 fathoms. 2 specimens of type II. and 2 of type III. 



Genus Paracyathus Milne-Edwards & Haime. 



Paeacyathus cayatus Alcock [1]. 



There is a single small and very irregular colony of five calices, 

 which with much hesitation I identify as the above species. The 

 whole measures 24x18 mm. and 14 mni. in height from the 

 broad encrusting base. The largest calice measures 11x9 mm. 

 and 2 mm. in depth. 



This is a new species established by Alcock, which he says is 

 very near the fossil form Paracyathus crassus of Milne-Edwards 

 and Haime. 



Locality. — Station II. Mai3'apaBay, Bottom: sand, mud, and 

 coral. Depth: 10 fathoms. 



* Communicated by Prof. G. C. Bovexe, D.Sc, F.Z.S. 



