THE VOYAGE OF H.M.S. CHALLENGER. 



5 to 15 



60 

 26 



Low water to 

 10 fms. 



Sub-genus (?) Marjasella, Dall. 



Loop doubly attached to hinge-plate, and to the sides of a verj' elevated mesial septum 

 (reflected portions of the apophysis united forming a loop), Dall. 



It is stiU to be determined by further study whether this is a good sub-genus, or a 

 mere modification of the loop of Terebratella. Several of the so-termed species placed in 

 this sub-genus (?) have all the appearance of being young shells of Te)-ebraMla. The 

 species also are nearly aU of small dimensions. 



^Magasella flexuosa, King, Zool. Jom'., vol. v. p. 337, 

 1835. Seems to be a good species. 



0) 



5 to 50 



Lowest spring 

 tides. 



(?) 



2 to 10 



0) 



(?) 



15 



(1) Marjasella gouldi, Dall, Proc. Zool. Soc, p. 307, pi. 

 xxxi. fig. 11, a, b, c, 1871. 



(1) Magasella aclamsi, Dav., Proc. Zool. Soc, p. 307, pi. 

 XXX. figs. 23, 24-, 1871. These last two species re- 

 quire more study. Material insufficient. 



{fjMagasella aleidica, DaU, Proc. Cal. Acad. Sci., 1872. 

 The types of all the new species of recent Brachiopoda 

 dredged by Mr W. H. Dall, as well as by Gould, are 

 preserved in the National IMuseum, Washington. 



(1) Maga-sella crenulaia, Sow., Thes. Conch., vol. i. p. 358, 

 pi. xvii. figs. 96, 98, 1846. Requires further study 

 and more material. 



{!,) Magasella Icevis, Dall, Am. Joiu-. Conch., vol. vi. p. 136, 

 pL vi. figs. 9, 10, 13, 1870. I have never seen this shell. 



{1)Magasella radiata, DaU., Eep. on the Brach. of Alaska 

 and the Adjacent Shores of North America, p. 49, 1877. 

 Not figured. I am not acquainted with this species. 



{I) ilagasella suffusa, Eeeve, Conch. Icon., pi. v. fig. 18. 

 Type in Mr Davidson's collection. This is, I fear, 

 not a good species. 

 MagaseUa{T) cumingi, Dav., Proc. Zool. Soc, .p. 78, pi. 

 xiv. figs. 10-16, 1852. This is a very good species, 

 but I am not quite certain that it is properly classed 

 with Magasella. Its shape and -beak are very peculiar. 



(I) Magasella (1) fibula, Reeve, sp. BoitchanliaQ) fibula, 

 Reeve, Conch. Icon., -pi. vii. fig. 30, a, b, 1861. One 

 specimen only known, British Museum. It is probably 

 only a very large example of Magasella cumingi, and 

 not a Boticliardia. I have not seen its interior. 

 Magasella (1) (Terebratula) lupinus, Phil. Wieg. Archiv., 

 p. 58, 1845. Described, but not figured. Mr DaU, 

 who saw the type at Berlin, tells me that it is a small, 

 smooth Magasella, a. little like his M. Icevis. 

 {'>)Magasella (?) (Terebratula) inconspicua, Sow., Thes. 

 Conch.," p. 359. pi. Ixxi. figs. 102-104, 1846. See 

 Terebratella rubicunda. 



Orange River, Patagonia ; 

 Port Pamiue, Straits of 

 MageUan ; near Falkland 

 Islands. 



Japan. 



Japan. 



Aleutian 

 Etches ; 



Islands to Port 

 Kyska Island ; 

 Unalashka 



Adakh Island ; 

 (DaU). 

 Santa Cruz ; Canaries. 



Orange Harbour. 



Popoff Strait ; Shumargin 

 Island. 



Habitat unknown. 



Port Jackson Heads and 

 Chatham Islands^ South 

 Australia. Port Jackson 

 (Challenger Expedition, 2 

 to 10 fms.). 



Bass' Strait (Calvert). 



Chonos Island. 



New Zealand. 



