. Mollusca ... Mollusks. 172 UNIONIDjE. postice declive truncata, margine ventrali recto. Umbonibiis decorticatis. Epidermide flavescente, postice viridescenle. Testa concentrice striata et rugis plurimis minutis valde approximantibus angulariter seu fulgurate granuloso-crispata, postice tantum radi- atini granuloso-crispata, Dentibus cardinalibus bifidis in utraque valvo. Nacrea cserulescenti-albida, iridescente. In senioribus granulationes valde inconspieuee iiunt. Long. 2d-5, lat. 39, diam. 38 mm. Hah. Near Gowhatti, Assam. The sculpture of this species much resembles that oh" Nodulari
. Mollusca ... Mollusks. 172 UNIONIDjE. postice declive truncata, margine ventrali recto. Umbonibiis decorticatis. Epidermide flavescente, postice viridescenle. Testa concentrice striata et rugis plurimis minutis valde approximantibus angulariter seu fulgurate granuloso-crispata, postice tantum radi- atini granuloso-crispata, Dentibus cardinalibus bifidis in utraque valvo. Nacrea cserulescenti-albida, iridescente. In senioribus granulationes valde inconspieuee iiunt. Long. 2d-5, lat. 39, diam. 38 mm. Hah. Near Gowhatti, Assam. The sculpture of this species much resembles that oh" Nodularia crispisuUata, Benson. 307. Parreysia (Parreysia) perconvexa, Preston. Parreysia (Parreysia)perconvexa, Preston, Rec. Ind. Mus., Calcutta, Tii, 1912, p. 302. Original description:—Shell ovate, slightly curved, very convex, solid but much eroded, where intact covered by a dark blackish-. Fig. 17.—1 & 2. Parreysia {P.)perooiive.'ca, Vre^ion. (Type.) Nat. size, 3. Hinge of same. brown periostracnm; umbones moderately large; dorsal margin sloping in an anterior direction ; ventral margin slightly curved. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Blanford, William Thomas, 1832-1905; Godwin-Austen, Henry Haversham, 1834-1923; Gude, Gerard Kalshoven, 1858-; Preston, Hugh Berthon, 1871-. London, Taylor and Francis; [etc. , etc. ]
Size: 1686px × 1481px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorg, bookcentury1900, bookdecade1900, booksubjectmollusks
