ASCARID.E. 25 



§ 3. (Esophagus prolonged, in form of a coecum or pyloric ap- 

 pendage, along the intestine, and accompanied by another 

 coecum springing from the intestine, and directed forwards. 



29. ASCARIS SPICULIGERA. 



Ascaris spiculigera, Rudolphi, Hist. Nat. Entoz. ii. pt. 1, 168 ; 



Synopsis, 48 & 290, n. 51, 662, n. 45 ; Bremser, Vers Intest. de 



I 'Homme, 128 ; Icon. Helminth, t.5, f. 5-8 ; Creplin, Nov. Obs. de 



Entoz. 22 ; Mehlis, Isis, 1831, 94, 95 ; Bellingham, Ann. &; Mag. 



Nat. Hist. 1844, xiii. 171, n. 22; Dujardin, Hist. Nat. Helminth. 



206. 

 Ascaris carbonis, Turton, Brit. Faun. 125 ; Pennant, Brit. Zool. 



ed. 1812. 

 Ascaris variegata, Rudolphi, Hist. ii. pt. 1, 169 ; Synopsis, 49, 



n. 52. 

 1 Ascaris colymborum, Rudolphi, Synoptsis, 55, n. 97. 

 ? Ascaris mergorum, Rudolphi, 1. c. n. 100. 



Hab. (Esophagus of the common Cormorant, Graculus carbo. 

 From the collections of M. Siebold and Dr. G. Johnston. 



30. Ascaris clavata. 



Ascaris gadi, Mutter, Zool. Dan. Prod. n. 2595 ; Fabricius, Faun. 

 Oroenland. 274, n. 255 ; Mutter, Zool. Dan. ii. 47, t. 74, f. 6 ; Fa- 

 bricius, Dansh. Selsk. Skrivt. i. pt. 1, 155 ; Ratlike, DansJc. SelsL 

 Skrivt. v. 67. 



Proboscidea gadi, Tab. Encyc. t. 32, f. 15, 16. 



Ascaris clavata, Rudolphi, Hist. Nat. Entoz. ii. pt, 1, 183 ; Synopsis, 

 51 & 293, n. 64 ; Lamarck, An. S. Vert. iii. 209 ; 2nd ed. iii. 656 ; 

 Bellingham, Ann. dh Mag. Nat. Hist. 1844, xiii. 173, n. 29; 

 Dujardin, Hist. Nat. Helminth. 211. 



Hab. Maw of a Codfish, taken in 40 fathoms, lat. 66° 34' K long. 

 53° 08' W. 



Presented by Dr. Sutherland. 



31. Ascaris LiEvissiMA, Baird. 



Body round, very smooth, of a rather dark olive colour, marked 

 with numerous very fine smooth longitudinal lines, and occa- 

 sional very distinct red circular lines at irregular distances ; 

 tapering at both extremities and narrower at posterior extre- 

 mity. Length 10 inches, greatest breadth 4 lines. Head small, 

 in form of a narrow circular rim ; valves of the mouth large and 

 distinct, of a triangular shape, divided at the tip into two lobes, 

 each of which again is broadly emarginate. Between each of 

 the valves, at their base, is a small smooth tubercle or promi- 



D 



