The Fauna of British India, including Ceylon and Burma / edited by A.E. Shipley, assisted by Guy A.K. Marshall. Mollusca. (Freshwater Gastropoda & Pelecypoda.) / by H.B. Preston.

Date:
1915
Catalogue details

Licence: In copyright

Credit: The Fauna of British India, including Ceylon and Burma / edited by A.E. Shipley, assisted by Guy A.K. Marshall. Mollusca. (Freshwater Gastropoda & Pelecypoda.) / by H.B. Preston. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    Hub. Tonglu, Sikkini, at an altitude of 10,000 ft. (W. S. Atkinson). The following note is appended to the descriptionCom- pared with P. bombm/anum this is a smaller, natter and less inequilateral shell. . . . Type in the British Museum. 371. Pisidium nevillianum, Theobald. Pisidium neuillianum, Theobald, J. A. S. B. xlv, 1876, p. 188. Original description :—Testa trigona, tumidiuscula, tenui. inaequilaterali, postice modice convexa, antice elongata, sub- acuminata, exilissime concentrice striata; umbonibns lawigatis. Long. 3-50, lat. 3-60, diam. 2-20 mm. Hob. Near Burki. Appears to be chiefly distinguishable from its allies by its trigonal form. 372. Pisidium stewarti, Preston. Pisidium stewarti, Prestou, Rec. Ind. Mas., Calcutta, iii, 1909, p. 116 (fig. in text). Original description:—Shell sub-trigonal, rather inflated, pale yellowish brown colour, marked with fine concentric lines oi growth ; umbones large ; anterior lateral teetb somewhat curved with broad grooves between, posterior lateral teeth broad and somewhat projecting in right, strong and sharply curved in left Aralve. Long. 2-25, lat. 3 mm. Hah. High Hill, Gompa, Gyantse Valley, Tibet, in a small stream, among moss and stones, 14,500 feet. The type-specimen is in the Indian Museum, Calcutta. Two specimens only were obtained by Capt. P. H. Stewart, I.M.S.: its nearest ally would appear to be a fossil species from the tertiary deposits of Belgium *, there being no known recent I on ii resembling it. 373. Pisidium zugmayeri, Weber. Pisidium zugmayeri, Weber, Zool. Jahrb. Jena, xxix, 1910, pp. 310-311. Original description:—Testa flavescens, satis solida, inaequilatera, orbiculato-ovalis, parte posteriore abbreviata, ohtusa, ventriosula, tenuissime striata, sulcis post intervalla interpositis, lineis incre- ment! signata ; umbones versus marginem posteriorem siti, rotun- dati, prominuli; clentes cardinales valvas sinistra? bini, ante umbones, superior (exterior) fere rectus, tenuis, media parte * ]'. vincenliannm, B. B. Woodward, Cut. Brit. Spec. Pisidium in Coll. Brit.Mus., 1913, pp. 127-128. Q2