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Show 104 DR. W. BAIRD ON THE GEPHYREA. (Anus terminalis.) Genus 1. LOXOSIPHON. Loxosiphon, Diesing, 1851 ; Quatrefages, 1865. Sternaspis, sp., Chamisso & Eysenhardt. Sipunculus, sp., Blainville. 1. LOXOSIPHON ELEGANS. Sternaspis elegans, Chamisso & Eysenhardt, Nov. Act. Nat. Cur. torn. x. p. 351, t. 24. f. 5 a-e, 1820. Sipunculus elegans, Blainv. Diet. Se Nat. art. Siponcle, Atlas, t. 26. f. 2 (copied from Cham. & Eysenh.), 1828. Loxosiphon elegans, Diesing, Syst. Helm. ii. p. 70, 1851 ; Revis. Rhyng. I. c. p. 769, 1859 ; Quatrefages, Hist. Ann. ii. p. 605, 1865. Hab. Island of Radack, Pacific Ocean (Chamisso). 2. LOXOSIPHON ASPERGILLUM. Loxosiphon aspergillum, Quatrefages, Hist. Nat. Annel. ii. p. 605, t. 20. f. 20, 1865. " Hab. Isle of France (Quatrefages). Genus 2. DIESINGIA. Diesingia, Quatrefages, ii. p. 606, 1865. 1. DIESINGIA CHAMISSOI. Diesingia chamissoi, Quatrefages, Hist. Nat. Annel. ii. p. 606, t. 20. f. 22, 1865. Hab. ? 2. DIESINGIA CUPULIFERA. Diesingia cupulifera, Quatrefages, I. c. p. 607, t. 20. f. 21, 1865. Hab. 11ndian seas (Quoy #• Gaimard fide Quatrefages). Family IV. PRIAPULIDAE. Priapulidea, Diesing, 1851 & 1859. Priapulea, Quatrefages, I. c. p. 600, 1865. Priapulacea, Keferstein, Nach. Gesellsch. Wissensch. Gotting. 1865. Genus 1. PRIAPULUS. Priapulus, Lamarck, 1816; Blainville, 1828; Cuvier, 1830; Edwards; Forbes, 1841 ; Diesing, 1851 & 1859 ; Elders, 1862; Quatrefages, 1865, &e Priapus, Linnaeus. Holothuria, sp., Miiller, Linnaeus. 1. PRIAPULUS CAUDATUS. Holothuria priapus, Linnaeus, Syst. Nat. 12th ed. p. 1091 (synonym, et habitat partim exclusis), 1766; Gmelin, Linn. Syst. Nat. |