426 BULLETIN OF THE BUREAU OF FISHERIES. 



PLATE XXIV. 

 Distomum vitellosum Linton. 



Fig. 176. — From the drum (Sciamops ocellatus). Ventral view. X 80. 



Fig. 177. — Lateral view ofspecimen from saint- host but collected on different date. Life. Whensub- 



jected to pressure, the specimen assumed proportions like those in the following figure. 

 Fig. 178. — From silver perch (Bairdiella ehrysura). Life; X 50. The characteristic lobes around the 



ventral sucker are shown in Figs. 177 and 178. 



Distomum sp., from pin-fish [Lagodon rhomboides). 

 Fig. 179. — Ventral view. Life; actual length 2 mm. 



PLATE XXV. 

 Distomum corpulentum, sp. nov., from pin-fish {Lagodon rhomboides). 



Fig. 180.— Ventral view. Life; X 50. 



Fig. 181. — Ventral view of specimen compressed. Life; X 50. In this specimen the ova were escaping 



from the posterior edge, which appeared to be somewhat macerated. 

 Fig. 182. — Dorsal view of a larger specimen. Life; X 50. id, Diverticula of intestine. 



PLATE XXVI. 



Distomum inconstans, sp. nov., from porgee (Chsetodipterusfaber). 



Fig. 183. — Four individuals showing some shapes assumed. Life; actual length 1 to 2 mm. 

 Fig. 184. — Another specimen from same lot, compressed, ventral view. X 50. 

 Fig. 185. — Dorsal view of another specimen, same lot. Life; X 80. 

 Fig. 186. — Ventral view of another specimen. Life; x 80. 

 Fig. 187. — Spines from under side of neck. X 540. 



PLATE XXVII. 



Distomum vibex Linton. From puffer (Spheroides maciilatus). 



Fio. 188. — Ventral view. Life; actual length 6 nan. i <l, Diverticula of intestine. 



Distomum imparispine, sp. nov., from cobia [Rachycentroncanadus). 



Fig. 189. — Ventral view. Life; actual length !i mm. 



Fio. 190.— Ventral view of head. > 108. 



Fig. 191. — Dorsal view of same. X 108. 



Fig. 192. — Sagittate spines from underside of neck. X 315. 



Fig. 193. Spines on margin of neck; X 315. 



Fig. KM.— Spines on body just hack of ventral sticker. X 315. 



Distomum aduncum, sp. nov.. from toad-fish (Opsanus tau). 



Fig. 195. — Sketch of specimen lying in formalin. X 80. 



Fio. 196. — Ventral view. Sketch from life, hut a few details added from specimen stained and 



mounted in balsam. Actual length 0.87 mm. n c, Ventral sucker; ;/ or, genital acetabulum. 

 Fio. 1!>7. — Cirrus, cirrus-pouch, etc. Sketched from living specimen. X 315. h, Hooks, three in 



number, on cirrus; v s, ventral sucker. 



PLATE XXVIII. 

 Distomum globiporum Rudolphi. From spot (Leiostomus xardhurus). 



Fio. 198. — Ventral view. Actual length 2.3 mm. 

 Fig. 199.— Spines from neck, x 540. (See Fig. 173.) 



Distomum pectinalum, sp. nov., from silver perch (Bairdiella ehrysura). 



Fig. 200.— Dorsal view. Life; X 80. 



Fig. 201. -Ventral view of another specimen. Life; ■ 80. 



