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Show ^6 DR. W. BAIRD ON THE GEPHYREA. [Feb. 13, 17. PHASCOLOSOMA AUSTRALE. Phascolosoma australe, Keferstein, Beitr. in I. c. p. 197, 1865, Sipunculus (Phascolosomum) australis, Quatrefages, I. c. ii. p. 619, 1865. Hab. Sydney (R. Schiitte fide Keferstein). 18. PHASCOLOSOMA CORIACEUM. Phascolosoma coriaceum, Keferstein, Beitr. in I. c. p. 203, 1S65. Sipunculus (Phascolosomum) coriaceus, Quatrefages, /. c. ii. p. 203, 1865. LLab. St. Thomas's, West Indies (Riise fide Keferstein). 19. PHASCOLOSOMAV PELLUCIDUM. Phascolosoma pellucidum, Keferstein, Beitr. in I. c. p. 204, 1865. Sipunculus (Phascolosomum) pellucidus, Quatrefages, I. c. ii. p. 620, 1865. Hab. St. Thomas's, West Indies (Riise fide Keferstein). 20. PHASCOLOSOMA PAPILLIFERUM. Phascolosoma papilliferum, Keferstein, Beitr. in 1. c. p. 204, 1865. Sipunculus (Phascolosomum) papillifer, Quatrefages, /. c. ii. p. 620, 1865. Hab. St. Thomas, West Indies (Riise fide Keferstein). 21. PHASCOLOSOMA PYGMA^-UM. Sipunculus (Qfidematosomum) pygmceus, Quatrefages, /. c. ii. p. 627, 1865. flab. 1 22. PHASCOLOSOMA RAPA. Sipunculus(03'dematosomum) rapa,Quatrefages,?. c. ii. p. 627,1865. Hab. 1 23. PHASCOLOSOMA MARGARITACEUM. Phascolosoma margaritaceum, Sars, 1851, fide Keferstein, Nach. Gesell. Wissensch. 1865, p. 201. LLab. Bergen (Keferstein). 24. PHASCOLOSOMA CUMANENSE. Phascolosoma cumanense, Keferstein, Nach. kon. Gesell. Wissen. Gottingen, 1866; Zeitsch. f. wissen. Zool. Band xvii. p. 53, t. 6. f. 19, 21, 1867. Hab. Cumana, Venezuela (Couthoy fide Keferstein). f Species inhabiting shells belonging to the Mollusca. (CRYPTOSOMUM, Quatrefages.) 1. PHASCOLOSOMA BERNHARDUS. Sipunculus strombus, Montagu, Tr. Linn. Soc. vii. p. 74 1804 • |