372 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.57. 



Qiioy's name is preoccupied by Leach; Sowerby's ruhicmida by 

 Solander in Donovan, hence we must take Sowerby's second name 

 given to the immature shell, afterwards described by me as a Maga- 

 sella. Quoy's figure does not represent the attachment to the sep- 

 tum of the descending loop but the cardinalia are accurately figured 

 and there can be no reasonable doubt that this is the species intended. 

 The Australian locality is miexpected and may be inaccurate, but 

 was probably due to one of Steams' correspondents. 



There is a feeble ridge in the pedicel valve hardly to be called a 

 septum. There are no props to the hinge teeth. The foramen is 

 normally entire but frequently open by reason of wear. The brachial 

 valve has usually a prominent squarish cardinal process; a concave 

 platform with a median ridge supported by a strong but low septum 

 which extends to about the middle of the valve, which is retractively 

 strongly uniplicatc in some individuals, but not noticeably so in 

 others, while still others have a number of additional minor plications. 



TEREBRATELLA RUBIGINOSA Dall. 



Terebratella sp. Dall, Amer. Journ. Conch., vol. 6, p. 122, pi. 6, fig. 4, 1870. 



? Terebratella suffusa Reeve, Dall, Amer. Journ. Conch., vol. 7, p. 65, 1871 (not of 



Reeve). 

 Terebratella rubiginosa Dall, Amer. Journ. Conch., vol. 7, p. 65, 1871; Proc. 



Acad. Nat. Sci. Phila. for 1873, p. 135. — Davidson, Mon. Rec. Brach., pt. 



2, p. 91, pi. 16, fig. 19, 1887. 



Type locality. — Simons Bay, Cape of Good Hope. W. Stimpson. 



Cat. No. 



5110 



Locality. 



Cape of Good Hope 



Collector. 



Stimpson. 



Number 

 of speci- 

 mens. 



The species is entered in the early Smithsonian register with a large 

 number of mollusks collected by Stimpson at the above locality 

 during the Ringgold and Rodgers exploring expedition and I think 

 there is no sufficient reason to doubt its having been part of that 

 collection. 



The pedicel valve has a short beak with a large incomplete foramen 

 a hardly perceptible median ridge internally, no dental props, and there 

 are four slender genital sinuses, the inner pair widely separated, 

 simple, bifurcate at the extreme ends ; the outer pair with five or six 

 lateral branches on their outer sides. 



The brachial valve is very slightly retractively uniplicate. It 

 has a small rugose cardinal process, a concave platform, supported 

 medially by a strong low septum reaching to the middle of the valve, 

 a loop well represented by my figure of 1870; the genital sinuses are 



