Explanation of Plates. 93 



Plate i6. 

 Leurodera decora gen. et sp. nov. 



Fig. 128. Ventral view, balsam; excretory vessel added from another speci- 

 men; length 1.86 mm. From Hcsmulon plumicri. 



Fig. 129. Free-hand sketch from life showing an inclosed nematode (n) near 

 posterior end; length 1.75 mm. 



Dictysarca vircns gen. et sp. nov. 



Fig. 130. Ventral view, diagrammatic and some details added from sections; 



length 4.5 mm. From Lycodontis funebris. exp, excretory pore 

 ' surrounded by gland-cells; u, probably uterus, though no ova 



were present. 

 Fig. 131. Ventral view of anterior end of specimen with short esophagus, 



life; diameter of oral sucker 0.5 mm. 

 Fig. 132. Superficial view of alcoholic specimen; length 4.5 mm., breadth 



2.5 mm., thickness 2 mm. 

 Fig. 133. Transverse section through cirrus-pouch, the next section behind 



this contains vertical part of metraterm; breadth 1.56 mm. 



Index line, pr' , points to duct of prostate. 

 Fig. 134. Memorandum sketch, life, ventral view showing the intestine and 



characteristic reticulated or areolated structure; length 5 mm. 



From L. moringa. 

 Fig. 135. Sagittal section, diagrammatic, of anterior end. 

 Fig. 136. Transverse section of body through ventral sucker; breadth 1.05 mm. 



Thclctriim Jiisiiforme gen. et sp. nov. 



Fig. 137. Lateral view, life, details added; length 1.83 mm. From Poma- 

 canthiis arcu-atiis. w, ventral papillae. 



Plate 17. 

 Hemiurus merus sp. nov., from Clupanodon psendohispanicus. 

 Fig. 138. Ventro-lateral view, balsam; length 1.66 mm. 



Sterrhuriis nionticellii (Linton). 



Fig. 139. Sagittal section of neck; diameter of oral sucker 0.12 mm. h, cleft 

 in front of ventral sucker. From Echeneis naiicratcs. 



Fig. 140. Immature specimen from Chlorichthys bifasciatns, life; length 0.46 

 mm. 



Sterrhuriis jusiformis (Ltihe). 



Fig. 141. Ventral view, balsam; length 2.52 mm. From Lycodontis funebris. 

 Fig. 142. Ovary and vitelline glands, dorsal view. 



Fig. 143. Posterior end showing retracted condition; diameter 0.45 mm. 

 Fig. 144. Dorsal view, life, details added; length 1.96 mm. The oral sucker 

 is invaginated. From L. moringa. 



Plate 18. 

 .Sterrhuriis jusiformis (Ltihe), continued. 



Fig. 145. Ventro-lateral view of body, dorsal of head, showing course of 

 excretory vessels, life, details added ; length 2.70 mm. The head 

 is bent sharply ventrad. Froin L. funebris. 



Fig. 146. Nearly sagittal section through cirrus-pouch, prostate, and metra- 

 term; diameter of intestine 0.07 mm. pr' , duct of prostate; cp' , 

 muscles of cirrus-pouch. 



Fig. 147. Transverse section of cirrus-pouch; diameter of cirrus 0.05 mm 

 cp' , muscles of cirrus-pouch. 



Ectenurus virgula sp. nov., from Clupanodon pseiidohispanicus. 



Fig. 148. Lateral view, life, details added; length 2.35 mm. n, lateral emi- 

 nence on neck. 



