AN AÏTEMPï TO REVISE THE FAMILY (( LINGUATULIDAE )) 71 



)) Maie (?) : Longer than female, about 14 lines long, covered with a 

 smooth skin which is slightly ridged across, and bas at its inferior 

 extremity a small sharp papilla about 3/4 of a Une in length and 

 brown at the tip (the pénis?). The inferior extremity is rounder 

 than in the female, but otherwise the form of the animal is nearly 

 the same ». — Baird. 



Habitat. — Imbedded in the llesh of the head of a Soonderbund 

 Crocodile (CrocodUus palustris), from India. 



I bave examined Baird's three spécimens. The maie (?), without 

 allowing for curvature, is25 mm. long.; the females (one of them is 

 in two pièces) are barely 20 mm. long., and 10 broad at the head. 

 One cannot see the mouth in the female as it lies at the bottom 

 of a deep dépression with wrinkled walls from which project the 

 four typical hooks. In the maie (?) there is no such dépression 

 and the mouth lias a somewhat squarish shape, the posterior 

 border however being longer than the anterior. The body of 

 the maie (?) bas shrunk away from the cuticle wihch is smooth, 

 the body however shows traces of annulation, in the females there 

 are about 40-50 rings, which are difficult to count because two 

 rings on one side of the body not unfrequently fuse into one on the 

 other, and because in front of the middle of the body each ring bas 

 a transverse groove, dividing it into two, and this groove may or 

 may not extend ail round the body, also on the head where the 

 grooves become much puckered they are indistinct. 



13. — POROCEPHALUS MEGASTOMUS Dicslng. 



Synoxym. — PentastomummegastomumDiesmg. 



DiAGNOsis. — « Corpus clavatum, retrorsum attenuatum, acumi- 

 natum, annulato-plicatum , annulis linearibus. Os orbiculare 

 maximum (inter bothria arcuatim disposita situm). Longit. fem. 

 11 mm., latitudo antice 2,2 mm., postice 7,0 mm. » — Leuckart. 



Habitat. — Phrynops geoffroyana {Hydraspis geoffroyana) in the 

 lungs. 



There are two spécimens of this genus in the Muséum at Vienna. 

 Tiie anterior end of the body is swollen and reaciies its greatest 

 diameter at about one-eigbtli the body-lengtii from the anterior 



