DE. T. DAVIDSON ON EECENT BEACHIOPODA. 233 



Subfamily MegeulinjE. 



VI. Genus Megerlia, King, 1850. 



Megerlia truncata, Linne, sp., 1767, var. monslruosa, Scacchi. 



M. sanguinea, Chemnitz, sp., 1785, = erythroleuca, Quoy, var. Reevei, Da.\idson, = vs.r. pulchella, Sowcrby. 



Uncertain Species. 

 Megerlia Wilkmoesi, Davidson, 1878. 



VII. Subgenus Laqueus, Dall, 1870. 



Laqueus californicm, Koch, sp., 1813, — Koc/ii, Kiister, var. vancouverensis, Davidson*. 

 L. rubellus, Sowerby, sp., 1846, = suffusus, Dall. 

 L. pictus, Chemnitz, sp., 1785. 



Subfamily Magasin^e. 



VIII. Genus Bouchardia, Davidson, 1849. 

 Bouchardia rosea, Mawe, sp., 1823, = tulipa, Blainville. 



Subfamily Kraussinin^. 



IX. Genus Kraussina, Davidson, 1861. 



Kraussina rubra, Pallas, sp., 1766, = capensis, Gmel. (part). 



K. cognata, Sowerby, sp., 1846, nee Chemnitz. 



K. Deshayesi, Davidson, 1850, = capensis, Adams. 



K. pisum, Valenciennes, apud Lamarck, sp., 1819, = T. natalensis, Kiister, ? J", algoensis, Sowcrl)y. 



K. Atkinsoni, Teuison Woods, sp., 1878. 



X. Subgenus Megerlina, Deslongchamps. 



Kraussina [Megerlina) Lamarckiana, Davidson, 1852. 

 K. [M.) Davidsoni, Velain, 1877. 



Subfamily Argtopi.n^^. 



XI. Genus Argiope, Deslongchamps, 1842. 



Argiope decoUata, Chemnitz, sp., 1785. 



Uncertain Species. 

 Argiope ? globulifurmis, Schulgin, 1884. 

 A. Barroisi, Schulgin, sp., 1884. 



XII. Subgenus Cistella, Gray, 1853. 



Cistella neapolitana, Scacchi, sji., 1833, = ? C. biplicatu, Seguenza. 



C cistellula, Searlcs Wood, sp., 1811. 



C. Woodivardiana, Davidson, sp., 1866. 



C. cuneata, Risso, sp., 1826. 



('. lutea, Dall, 1870. 



C. Barrettiana, Davidson, sp., 1866. 



C. Kou-alevskii, Schulgin, sp., 1884. 



C. Schrammi, Crosse, sp., 1866. 



* The shell described as Me<jcrVui (Ismcnia) Jeffnynii, Dall, is the young of this species. 



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