318 PARASITIC WORMS. 



to either of the other groups ( Dipylidiinae and Paraterininae) 

 into which tlie Hymejiolepididap. have been divided. The 

 jrenus is tlierefore referred provisionally to the Hymenolepi- 

 dinae. Tlie exceptional thickness of the outer shell of the eggs 

 is remarkable, and is a feature rather reminiscent of the 

 Tacniidne. 



Subfamily Dipylidiinae. 



Anomotarnia C'ohn, 1900. 



Anomotaenia murudensis sp. n. 



Host : Garndax schisto^hhunys (a Laughing-thrush). Lo- 

 cality : Mt. Murud. 



The material of this species is in a somewhat unsatisfactory 

 condition, and will only be very briefly described. The stro- 

 bila is very muscular, and the specimens are much contracted. 

 The length of the longest is about 22 mm., and the maximum 

 width attained is about 2 mm. Tiie scolex has a transverse 

 diameter of 0.37-0.43 mm. The suckers measure 0.12-- 

 0.16 mm. in diameter, and the rostellum 0.12--0.19 mm, 

 Tlie latter bears tvvo alternating crowns of powerful hooks, 

 having about 20 or 22 hooks in each. The hooks measure 

 0.05—0.055 mm. in length. In mature segments there are 

 35—45 testes, grouped behind and at the sides of the female 

 glands. The oenital pores are irregularly alternating, situated 

 near the anterior border of each segment and usually over- 

 lapped by the hinder edge of the preceding segment. The 

 cirrus-sac measures about 0.15 x 0.05 mm. The cirrus is 

 covered with minute spines. The gravid segments are almost 

 entirely filled by the sac-like uterus. The onchospheres 

 measure about 0.028 mm. in diameter and are enclosed in two 

 thin shells. 



Anomotaenia dehiscens (Krabbe, 1879) appears to be the 

 only Avonwtaenia recorded from a bird of the family (Time- 

 liidae) to which Garrulax belongs. This is a very much 

 smaller form, with hooks only 0.012 mm. loncj. The following 

 species occur in birds more or less distantly related to the 

 above-mentioned family, but the form here described is readily 

 distinguished from them by the size of its hooks alone : — 

 Anomotaenia constricta Molin, A. trigonocephala Krabbe, A. 

 horealis Krabbe, A. quadrata Eud. 



