86 DR. W. BAIRD ON THE GEPHYREA. [Feb. 13, 



17. Phascolosoma AUSTRALE. 



Phascolosoma australe, Kefersteiii, Beitr. in I. c. p. 197, 1855, . 

 Sipunculus {Phascolosomum) australis, Quatrefages, l. c. ii. p. 619, 

 18G5. 



Hah. Sjdne}' {R. ScJiiitte fide Keferstein). 



18. Phascolosoma coriaceum. 



Phascolosoma coriaceum, Keferstein, Beitr. in I. c. p. 203, 1865. 

 Sipunculus {Phascolosomum) coriaceus, Quatrefages, /. c. ii. 

 p. 203, 1865. 



Hab. St. Thomas's, West Indies {Uiise fide Keferstein). 



19. Phascolosoma pelltjcidum. 



Phascolosoma iiellucidum, Keferstein, Beitr. in I. c. p. 204, 1865. 

 Sipunculus (Phascolosomum) j^ellucidus, Quatrefages, I. c. ii. 

 p. G20, 1865. 



Ilab. St. Thomas's, "West Indies (Riise fide Keferstein). 



20. Phascolosoma papilliferum. 



Phascolosoma jjajnlliferum, Keferstein, Beitr. in I. c. p. 20 I, 1865. 

 Sipunculus (Phascolosomum) j^^piU'f'i', Quatrefages, /. c. ii. 

 p. 620, 1865. 



Ilab. St. Thomas, West Indies (Riise fide Keferstein). 



21. Phascolosoma PYGM.5i:uM. 



Sipunculus (CEdeniatosomuni) ])ii(jnicjeus, Quatrefages, /. c. ii. 

 p. 627, 1865. ■ 

 Ilab. ? 



22. Phascolosoma rapa. 



Sipunculus((Edematosonium) ;'a^)ff, Quatrefages,^. c. ii. p. 627, 1865. 

 Ilab. ? 



23. Phascolosoma margaritaceum. 



Phascolosoma margaritaceum, Sars, \Sb\,Jide Keferstein, Nach. 

 Gesell. Wissensch. 1865, p. 201. 

 Ilab. Bergen (Keferstein). 



24. Phascolosoma cumanense. 



Phascolosoma cumauense, Keferstein, Nach. kiiu. Gesell. Wis-;en. 

 Gottingen, 1866; Zeitsch. f. wisscn. Zool. Band xvii. p. 53, t. 6. 

 f. 19, 21, 1867. 



Hab. Cumana, \ev\eznela. (Couthoij fide Keferstein). 



t Species inhubitinff shells belonginr/ to the Moflusca. 

 (Cryptosomum, Quatrefages.) 



1. Phascolosoma berxkardus. 



Sipunculus strombus, Montagu, Tr. Linn. Soc. vii. p. 74, 1804 ; 



