NO. 1560. PARASITES OF BERMUDA FISHES— LINTON. 123 



Plate V. 



DiscocephaJum pUeatum Linton, from OxirJiarJihius plntijodon. 



Fig. 31. Worms attached to mucous membrane, heads embedded, Ufe; about 

 natural size. 



Rhynchohotliriuin speciosinn Linton. 



32. Head and neck of scolex from cyi^t in Epinephelns striatus; balsam; length 

 to base of contractile bulbs 5 mm.; rh, contractile bulbs; ])S, proboscis 

 sheath. 

 83. Posterior end of same. 

 34, 35. Two views of proboscis; diameter, including hooks, 0.06 mm. 



Rhynchohothriiim .ynrdconmtnni, new spet'ies. 



36. Head and neck of scolex from cyst in Epinephelus maculosux; balsam; 

 length to base of Imlbs 5 mm.; a. Posterior end of larva; cb, bulbs; 

 ps, sheath. . 

 37, 38. Two viev/a of proboscis; diameter, incjuding hooks, 0.06 mm. 



Plate VL 



Otohoihrimn penetrans, new sjiecies, from Tylosurus acus. 



Fici. 39. Blastocyst (plerocercus), alcoholic; length, 10 mm. 



40. Scolex, alcoholic; length, 3.5 mm. 



41. Front view of bothria. 



42. Scolex, alcoholic; length, 4 mm. 



43. Front view of head. 



44. Another, with proboscides everted; breadth, 2 mm. 



45. Scolex with anterior end retracted; breadth at base of bulbs, 2.1 nun.; ui 



balsam; cb, bulb; ps, sheath. 

 46-48. Different views of proboscides, all near base; diameter, incluiling hixjks, 

 0.22 mm. 



Plate VIL 



Encotyllahe, species, from Calamus calamus. 



Fig. 49. Ventral view, life; length, 3.5 mm. 



50. Lateral view of posterior end. 



51. Anterior end, ventral view; in balsam. 



52. Dorsal view of same. 



53. Posterior end; in balsam. 



Microcotyle, species, from .('alamus calamus. 



54. Hooks on retracted cirrus highly magnified; in balsam. 



Disfomum, species, from Seriolafusciatd. 



55. Lateral view; in balsam; length, 2 mm. 



56. Ventral view of another specimen; in balsam; length, 2.5 mm. 



Disiomum, species, from AngeUchlhys ciliaris. 



57. Lateral view, life; length, 1.26 mm. 



