47 
cirrus with its sheath lined with spines ; these spines are very 
regularly placed in groups of threes, with their apices directed 
forwards. The cirrus was seen protruding some way from its 
sheath, and was unarmed. The male duct opens into the genital 
suras, the genital pore being just in front of the ventral sucker, 
ine ovary is round- uterus with few loops, containing eggs 
measuring 0-0G6 mm. by 0 030 mm. The vagina is long ai,S lined 
with regularly arranged spines like the cirrus sac, and opens into 
the genital sinus by the side of the male duct. The vitellaria are 
well deve oped, reaching from the posterior end of the body to just 
beyond the posterior end of the vesicula seminalis, composed of 
follicles with ongitudiual canals as in ft ,„«/., Iu mv example, 
not jery much extended, the follicles come to the sides of the 
The life history is not known. 
Stcphanochasmus tnjhr, n. sp. (Plate III., figs. 3- 1.) 
One specimen only of this Trematode was found in the pyloric 
naTti 0 , T, Z G '"' nal '' 1 ( Fei ™*>- B " l""bably the species 
mentioned byOdhner* as occurring in the Grey Gurnard, T,i,,a 
St be ?" •«■*««« Btate it is very like S. iacZu 
N c 1 1, from the Halibut, but the armature of the head is different, 
and the relation of the si.es of the suckers. The present specie 
; , however, evidently more nearly related to ft Latu. tha, o 
any other known SUphame/umm. 
4-8 mm Ih™ 'TT* 8 '* iu ta * th « eoiitrnctoil, and 
l b™ i n extended ; the breadth when contracted is 0-74 mm., 
fo tun^f 11 was alive when ««* — ««* £ 
C ° , 16 he f SP " ,CS wrc »«8<% imaged, so that 
in h , ,' " 0t b ° d8t « niMd i tLere however, 
■m" 1 " " fi "- V Six "* ™ re ^an forty-two, and 
feo-M ."2, b ? km the upper spines 
fta U n"and i « f >~ ( °- 8 ° """■>• » d 
thickly eh,„„„i , T1 ' e bod y 18 C0VOTea ■** one n'ines so 
a l Uoii S t F at " le anterior e,ld ttat « 8»™ ti e worm 
PrcPh " ™ x i ? al SUCker roum1 ' 0 28 ""OSS. The 
long I „ ^ lead, to a conspicuous pharynx, 0-20 mm! 
I 5 a ™? j^oesophagus Ranching into two long lobes 
