S 1* A T II A . 



89 



II. SUBGENUS SPATHA. 



"i ■- 



TRIANGULAR. 



*alata. Lea. 



OVAL. 



*Nyassaensis. Lea. 



OBLONG. 



*Natalensis. Lea. 

 An. tahula. Sow. 



WIDE. 



*niodesta. Lea. 



OVAL. 



*rubens. 2 Lam. Chenu. 



Lrid. ruhens. Desh. Cuv. Ra 

 Irid. arenata? Caill. Pot. 

 An. ohlusa? Poller and Mich. 

 An. ruhens. Lam. Blain. Menke. 



Kiist. 

 An. Clappertoni? Kcenig. 

 Spatha Cailliaudi? Mart. 

 Spatha Hartmanni? Mart. 



ng. 



OVAL. 



Waklbergi. 4 Krauss. 



Baikii. H. Adams. (Anoclonta.) 



WIDE. 



*dubia. Gmel. Ghenu. 

 Myt. dubius. Gmel. Dill. 

 Mut. chibia. H. and A. Adams. 

 Lrid. Nilotica. Sow. Fer. Guv. 

 Crouch. Caill. Pot. Desh. Mart. 

 An. duhia? Dose. 

 Lrid. Oudnimi. Kaenig. 

 Lrid. gracilis. Caill. 

 Spatha Nilotica. Anton. Kiist. 

 Cattiscapha Nilotica. Swain. Chenu. 

 Myt. Niloticus. Wood. 

 Le mutel. Adan. 

 lrid. mutel? Rang. 

 Lrid. angustata. Sow. 



*ca3lestis. 5 Lea. 



Lrid. rostrata? Rang. Pot. 

 Spatha rostrata. Kiist. 



Species unknown to me. 



Spatha compressa. Mart. 

 Spatha Petersi. Mart. 



1 H. and A. Adams divide the group into Mutela, Scopoli, Scalliscajjha, Swain, Pleiodon, Con., 

 Spatha, Lea, Leila, Gray, Mutela, consisting of duhia, Grnel., valeus, Parr. 



2 Dr. Gray informs me that Cailliaud figures a species near to this from Egypt, which is in his 

 possession, but I have not seen the shell or description. A specimen in Mr. Tanner's collection labelled 

 Iridina arcuata, Caill., and sent by M. Cailliaud to the late Mr. Hyde, is an Anodonta. 



3 In Denham aud Clapperton's Journey. 



4 The figure is very like ruhens, but Prof. Krauss says it differs (" Siidafrikanischen Mollusken''). 

 It comes from Natal, South Africa. 



5 A specimen of cselestis received of Dr. Pitcairn, from Edinburgh, was marked Unio longinus, Gray. 



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