^868.] DR. W. BAIRD ON THE GEPHYREA. QJf 



Species considered doubtful, or not sufficiently described. 



40. Phascolosoma nordfolcense. 



Sipunculus 7iordfolcensis, Brandt, Prod. Descript. Animal, ab Mer- 

 tens. observat. p. 61, 1835; Dujardin in Lamarck, An. s. Verteb 

 (2nd edit.) iii. p. 470, 1840. 



Phascolosomum nordfolcense, Diesing, Syst. Helm. ii. p. (^T, 1851 • 

 Revis. d. Rhyngod. I. c. p. 765, 1859; Dujardin, Hist. Nat. Ann! 

 ii. p. 631, 1865. 



Hab. Norfolk Sound {Mertens). 



41. Phascolosoma fasciolatum. 



Sipunculus fasciolatus, Brandt, Prod. Desc. An. Mertens obs 

 p. 61, 1835. 



Phascolosomum fasciolatum, Diesing, Syst. Helm. ii. p. 66, 1851; 

 Revis. d. Rhyngod. I. c. p. 765, 1859; Dujardin, l. c. ii. p. 631^ 

 1865. 



Hab. Island of LTalan, Caroline Islands (Mertens). 



42. Phascolosoma ambiguum. 



^Sipunculus ambiguus, Brandt, Prod. An. Mertens. obs n 62 

 1835. ^' ' 



Phascolosomum ambiguum, Diesing, Syst. Helm. ii. p. 67, 1851 • 

 Revis. d. Rhyng. I. c. p. 765, 1859 ; Dujardin, /. c. ii. p. 63 1', 1865.' 

 Hab. ? {Mertens). 



43. Phascolosoma tigrinum. 



Sipunculus tigrinus, Risso, Hist. nat. Europ. merid. v. p. 292, 

 1826; Guerin, Icon. Reg. An. Cuv. Zooph. t. v. f. 4, 1834?. 



Phascolosoma granulatum, Leuckart? fide Diesing; Job. Miiller 

 Wiegm. Arehiv, 1844, p. 168. * 



Phascolosomum tigrinum, Diesing, Syst. Helm. ii. p. 66, 1851 ; 

 Revis. d. Rhyng. /. c. p. 765, 1859; Dujardin, I. c. ii. p. 63l! 

 1865. ^ 



Hab. Nice, amongst Fuci (Risso), 



44. Phascolosoma flavum. 



Sipunculus fiavus, Risso, Hist. nat. Eur. me'rid. v. p. 292, 1826. 



Phascolosomum granulatum, Leuckart ? ; Job. Miiller, Wiegm. 

 Arehiv, 1844, p. 168 (quoted by Diesing). 



Phascolosomum flavum, Diesing, Syst. Helm. ii. p. 66, 1851 ; 

 Revis. d. Rhyng. /. c. p. 765, 1859 ; Dujardin, /. c. ii. p. 631, 1865. 



Hab. Nice (Risso), 



45. Phascolosoma leachii. 



Sipunculus leachii, Blainville, Diet. Sc. Nat. xlix. p. 312, 1827. 



Phascolosomum leachii, Diesing, Syst. Helm. ii. p. 67, 1851 ; 

 Revis. d. Rhyngod. I. c, p. 765, 1859; Dujardin, l.e, ii. p. 631,* 

 1865. 



Hab. 1 (Leach). 



Prog. Zool. Soc— 1868, No. VII. 



