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Show 1868.] DR. W. BAIRD ON THE GEPHVREA. 77 Helminth, torn. ii. p. 59, 1851; Revis. der Bhyngod. in Sitzungs-bericbte der kaiserlichen Akad. derWissenschaft. Band xxxvii. p. 751, 1859. Order I. GEPHYREA INERMIA. Gephyrea inermia, Quatrefages. Sipunculidea acrostomata, Diesing, Revis. der Rhyngod. Sipunculidce, Keferstein. Family I. SIPUNCULIDAE. Sipunculea, Quatrefages, 1865. Sipunculacea, Brandt, 1835 ; Keferstein, 1865. Eusipunculidea, Exaspidosiphones, Diesing, Revis. der Rhyngod. 1859. Anoteroprocta, Baseoprocta(pars), Diesing, Syst. Helminth. 1851. Genus 1. SIPUNCULUS. Sipunculus, Linnaeus, Blainville, Lamarck, Cuvier, Grube, Diesing, Quatrefages, Keferstein, &c. Syrinx, Bohadsch, Forbes (pars). Lumbricus, sp., Pallas. 1. SIPUNCULUS NUDUS. Vermis microrhynchoteros,~Rono\eletius,GesnerDeVermib.Aquati-libus, liber iv. p. 1226. fig. superior, 1558. Vermis macrorhynchoteros, Rond. Gesner /. c. fig. infer.* Syrinx, Bohadsch, De quibusd. Animalib. Marinis, pp. 93-95, t. 7. f. 6, 7, 1761. Sipunculus nudus, Linnaeus, Syst. Nat. 12th edit. p. 1078, 1766; Pennant, British Zoology, vol. iv. p. 31, t. 20. f. 10 (bad), 1777 ; Barbut, Genera Vermium, p. 16, t. 2. f. 3, 1783*f; Gmelin, Linn. Syst. Nat. vi. p. 3094 (synon. Martin exclud.), 1789; Lamarck, Systeme des Anim. sans Verteb. p. 352, 1801, Hist. Nat. An. s. Verteb. 1st edit. iii. p. 78, 1816, 2nd edit. iii. p. 469, 1840 ; Turton, Brit. Fauna, p. 128, 1807; Schweigger, Handbuch der Naturg. p. 553, 1820; Martens, Fauna Veneta, in Reise nach Venedig, Theil ii. p. 523, 1824 ; Blainville, Diet, des Sc. Nat. art. Sipunculus, torn. xlix. p. 309, and art. Vers, lvii. p. 554, Atlas, t. 31. f. 1, la, 1827; Leuckart, Brev. Animal, quorund. descriptiones, pp. 20, 21,1.1. f. 3, 1828; Fleming, British Animals, p. 491, 1828; Costa, Faun, del * Tbe two worms figured by Gesner, in the work quoted above, appear to me, without doubt, to represent the same species, only in different states of preservation in spirits. I have equally little doubt that they are identical with the Syrinx figured by Bohadsch, and that the two species given by Linnaeus in the ' Systema Naturae,' S. nudus and S. saccatus, are only different states of the same species, as has been pointed out by Cuvier and others. t The figure of S. nudus given by Barbut in the work quoted above is very bad and does not well represent this species; but the description appended to it is very good. The figure given by him of the S. saccatus is copied from Bohadsch, and refers to this species. |