. Bulletin of the British Museum (Natural History), Geology. 380 CARADOCIAN BRACHIOPOD FAUNAS OF THE BALA DISTRICT cardinalia formed prominent holes in the dorsal internal moulds and in g specimens the mean percentage length of the brachiophore bases relative to valve length (with variance) was 18-2 (11-13) while in 8 moulds the mean percentage length of the brachiophore bases relative to the maximum width of the sockets was 40-9 (variance 25-86). The fascicostellate pattern is quite distinctive. In 3 brachial valves, 4 costellae occurred within 1 mm. at 2 mm. from the umbo and this order of w
. Bulletin of the British Museum (Natural History), Geology. 380 CARADOCIAN BRACHIOPOD FAUNAS OF THE BALA DISTRICT cardinalia formed prominent holes in the dorsal internal moulds and in g specimens the mean percentage length of the brachiophore bases relative to valve length (with variance) was 18-2 (11-13) while in 8 moulds the mean percentage length of the brachiophore bases relative to the maximum width of the sockets was 40-9 (variance 25-86). The fascicostellate pattern is quite distinctive. In 3 brachial valves, 4 costellae occurred within 1 mm. at 2 mm. from the umbo and this order of wavelength is typical of the radial ornamentation except for a broad median costa occupying the crest of the pedicle valve. The pattern in the right halves of the brachial valves is typically 1, 2, 2a0, 3, 3a0, with ia, 2a and 3a occurring in 2/6, 3/6 and 2/4 specimens respectively, so that external secondary costellae are relatively well developed in the second and third (a) (b) (c) Fig. 9. The ventral (a) and lateral (b) aspects of a dorsal interior and the ventral internal mould (c) of Cremnorthis parva gen. et sp. nov., x 10 approx.: a, adductor scar ; b, brachiophore ; c, pedicle callist ; d, diductor scar ; m, vascula media ; s, septum ; y, vascula myaria. Superfamily DALMANELLACEA Schuchert & Le Vene 1929 Family DALMANELLIDAE Schuchert & Le Vene 1929 Genus DALMANELLA Hall & Clarke 1892 Type species. Orthis testudinaria Dalman by original designation of Hall & Clarke (1892 : 205). Dalmanella tnodica sp. nov. (PI. 4, figs. 24, 25 ; PI. 5, figs. 1-7) Diagnosis. Subcircular, unequally biconvex Dalmanella with sulcate brachial valve about three-quarters as long as wide and almost one-fifth as deep as long and evenly convex pedicle valve just over one-third as deep as long ; radial ornamentation costellate with modal count of 3 costellae per mm., 5 mm. anterior. Please note that these images are extracted from scanned page images that may have been dig
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