4S6 WILLIAM NICOLL. 



specimen I have obtained from Lophius really belongs to this species. It 

 is about 5 mm. in length and has suckers measuring respectively -65 mm. 

 and -78 mm. in diameter. 



The encysted stage of this parasite was met with frequently in the 

 shanny {Blennius pholis). It occurred in fairly large opaque brown cysts 

 measuring -7-14 mm. in diameter. They were attached to various 

 abdominal viscera, but chiefly the intestine and the liver. They were 

 commonest in the intestinal wall, either loosely attached or firmly 

 embedded, and in more than one case free larvae w^ere found actually in 

 the intestine. The larvae when freed from the cyst were about 2 mm. in 

 length (ecsoma retracted), and they had suckers measuring -28 mm. and 

 •4 mm. respectively in diameter. The genital organs were well developed 

 and fairly numerous eggs were present in many. These measured 

 •015 X -009 mm. 



The occurrence of the larvae of Lecithochirium ^mmt^wm encysted in 

 pipe-fishes has already been recorded by Looss (1907, p. 148). 



Genus SYNAPTOBOTHRIUM von Linstow. 



Synaptobothrium caudiporum (End.). 



Looss, 1907, pp. 150-2. 



This parasite has not hitherto been recorded from British waters. It 

 occurred in the stomach of three out of five specimens of Trigla hirundo 

 and once in Zeus faber and Lophius piscatorius. The specimens are 

 considerably larger than those examined by Looss, reaching a length of 

 4 mm. (unpressed specimens) or 5 mm. (pressed specimens). The vesicula 

 seminaHs is confined entirely in front of the ventral sucker, while the 

 metraterm may reach the centre of the sucker. The eggs have the 

 characteristic shape described by Looss. 



Encysted larvae of this specimen were found along with those of 

 Lecithochirium rufoviride in the liver and intestinal wall of a small 

 specimen of Labrus herggylta, and two cysts were found in the intestinal 

 wall of Crenilabrus melops. 



Sub-Family Lecithasterinae. 



Genus LECITHASTER Liihe. 



Lecithaster gibbosus (Paid.). 

 Looss, 1907, p. 164 ; Odhner, 1905, pp. 356-8 ; Nicoll, 1909, ]»p. 18-20. 

 This parasite occurred in seven different hosts, namely, Serrcmus 

 cabrilla, Trachurus trachurus, Zeus faber, Trachinus vipera, Trigla pini. 



