394 



Mr. A. G. Butler on a Collection of 



mixed with the typical form, two specimens of Ooniaster 

 equestris occurred, one having four rays, the other six, besides 

 the variety abbensis. 



By the kindness of Dr. Gwyn Jeffreys, we are enabled to 

 add the following species and varieties, which he dredged 

 last May during a short cruise in H.M.S. ' Porcupine ' off 

 Scarborough : — 



1. Leda minuta, var. brevirostris. 



2. Tellina balthica, L. A valve, 



in apparently a semifossil 

 state. 



3. calcarea, Chemn. An im- 

 perfect valve, in the same state 

 of preservation. 



4. tenuis, Da Costa. 



Thraeia convexa, W. Wood. 

 Young. Distinguishable with 

 difficulty from the young of 

 T. truncata or T. myopsis. 



PanopEea plicata, Mont. An im- 

 perfect valve. 



Oerithium reticulatum,Z)a Costa. 



Defrancia teres, Forbes. 



LV. — On a Collection of Lepidoptera from Southern Africa, 

 with Descriptions of new Genera and Species. By ARTHUR 

 Gardiner Butler, F.L.S., F.Z.S., &c. 



The collection of the British Museum has lately been en- 

 riched, through the liberality of C. R. N. Burrows, Esq., with 

 a series of Lepidopterous insects collected or bred by him- 

 self, chiefly at Natal, The following is a list of the species. 



Rhopalocera. 



Family 1. Nymphalidas. 



Subfamily Danainm. 



Genus 1. Amauris, Doubleday. 

 1. Amauris echeria, Stoll, var. albimaculata. 

 Natal. 

 Primaries spotted with white, as usual in Natal examples. 



Subfamily Satymnje. 

 Genus 2. Melanitis, Fabricius. 



2. Melanitis bankia, Fabricius, var. 

 Natal. 



Genus 3. Mycalesis, Hiibner. 



3. Mycalesis evenus $ , Hopffer. 

 Natal. 



