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



fascic. 10. p. 8, 1774 ; Cuvier, Regn. Anim. torn. iii. p. 244, 1830 ; 

 Guerin, Icon. R. Auim. Zoophytes, t. 6. f. 2, copied into Griffith's 

 An. Kingd. torn. xii. p. 456, Zoophytes, t. 1. f. 2, 1833; Lamarck, 

 An. s. Vert. 2nd edit. torn. iii. p. 4/2, 1846 ; Forbes & Goodsir, 

 Edinb. New Philos. Journ. torn. xxx. p. 370, 1841, and in Froriep's 

 Neue Notiz. torn, xviii. p. 273, 1841 ; Forbes, Brit. Starfishes, 

 p. 259, fig. append., 1841 ; Farran, Ann. & Mag. Nat. Hist. 2nd 

 series, torn. vii. p. 156, 1851; Nat. Hist. Review, torn. vi. p. 70, 

 1859 ; Diesing, Revis. derRhyngod. I. c. p. 772, 1859 ; Quatrefages, 

 Hist. Nat. Anneles, toin. ii. pt. 2. p. 594. 



Lumbricus thalassema, Pallas, Spic. Zool. torn. i. fasc. 10. p. 8, 

 t. 1. f. 6, 1774; Gmelin, Syst. Nat. p. 3085. no. 10, 1789 (synon. 

 prim, excluso) ; ? Turton, Linn. Syst. Nat. torn. iv. p. 59; Brit. 

 Fauna, p. 125, 1807 (synon. prim, excluso), descriptions and re- 

 ferences copied from Gmelin. 



Thalassina mutatoria, Montagu, Linn. Trans, vol. xi. p. 24, t. 5. 

 f. 2, 1815. 



Thalassema mutatorium, Cuvier, Regn. Anim. tom. iii. p. 244, 

 1830; Edwards, Regn. Anim. edit. Crochard, Zoophytes, t. 21. 

 f. 4, 5. 



Ochetostomum Gartneri, Diesing, Syst. Helminth, tom. ii. p. 73. 

 DO. 3, and p. 556, 1851. 



Ochetostoma mutatorium, Diesing, 1. c. no. 4. 



Hab. Coast of England, Devonshire {Montagu) ; Cornwall (Cocks, 

 Laughrin, ^c.) ; Ireland, near Dungarvon {Farran). B.M. 



2. Thalassema brevipalpis. 



Thalassema brevipalpis, Quatrefages, Hist, des Anuel. tom. ii. 

 pt. 2. p. 595, 1865. 

 Hab. ? 



3. Thalassema peronii. 



Thalassema peronii, Quatrefages, I. c. p. 595, 1865. 

 Hab. Indian seas. 



4. Thalassema lessonii. 



Holothuria eaouari. Lesson, Cent. Zool. p. 91, t. 31. f. 2, 1830 ; 

 Guerin, Icon. R. An. Zooph. t. 4. f. 6 (copied from Lesson). 



Ochetostomum lessoni, Diesing, Syst. Helminth, ii. p. 73, 1851. 



Thalassema lessonii, Diesing, Revis. d. Rhyng. I. c. p. 774, 1859; 

 Quatrefages, /. c. ii. p. 596, 1865. 



Hab. Borabora, Oceania {Lesson). 



5. Thalassema gigas. 



Thalassema gigas. Max Miiller, Obs. Anat. de Verm, quibusd. 

 Marit. p. 14, t. 3. f. 1-12, 1852 ; Diesing, Revis. d. Rhyugod. /. c. 

 p. 773, 1859; Quatrefages, I.e. ii. p. 596, 1865. 



Hab. Coast of Italy {Max Muller). 



6. Thalassema grohmanni. 



Ochetostomum grohnanni, Diesing, Syst. Helm. ii. p. 74, 1851. 



