368 MR, W. P. PYCRAFT ON A [ Mar. 16, 
TREMATODA. HOST: 
Lyperosomum corrigia (Braun)  Tetrao tetrix. 
CESTODA. 
Bothriocephalus sp. 0.1... +1200 Tetrao urogallus. 
Davainea cesticillus (Molin) ... Lagopus scoticus. 
Davainea globocaudatus (Cohn) Tetrao wrogallus. 
Davainea retusa (Clere) ......... Tetrao tetrix. 
Davainea urogalli(Modeer) ... Tetrao tetrix, Tetrao urogallus, 
and Lagopus scoticus. 
Davainea villosa (Bloch) ...... Tetrao tetrix. 
Hymenolepis microps (Diesing)  Tetrao tetrix, Tetrao urogallus, 
and Lagopus scoticus. 
Tenia bonasie (Miull.) ......... Bonasia sylvestris. 
Teenia echinata (Olss.) ......... Lagopus mutus. 
ACANTHOCEPHALA. 
Echinorhynchus stellaris (Molin) Tetrao tetria. 
5. On a Fossil Bird from the Lower Pliocene. 
Bay Weve MORARM INH: Zse, cA ease 
[Received February 16, 1909. ] 
(Text-figure 47.) 
The following aceount concerns the fossilized remains of a 
small Passerine bird from the Lower Pliocene of Gabbro, near 
Leghorn. The slab in which these remains are embedded was 
placed in my hands for investigation by my friend Dr. Forsyth 
Major, F.R.S., who has, throughout my enquiry, rendered me 
much help. 
Unfortunately, only the pelvic limbs and a few traces of 
feathers are here preserved ; further, the bones are much crushed, 
and the phalanges have been almost entirely lost. But from the 
slab and its counterpart, which has happily been preserved, 
sufficient details may be gathered to make identification possible. 
The right leg lacks the toes. The femur, on the slab, is much 
crushed and can only very imperfectly be traced; but on the 
counterpart of the slab it becomes clear that it is seen from its 
dorsal aspect, since the middle of the shaft shows a smooth, 
periosteal, surface; while the extremities thereof are missing, 
leaving beautiful impressions of the distal and proximal articular 
ends. The tibio-tarsus is seen from its fibular side. Herein traces 
are visible of the head of the fibula, closely approximated to the 
femoral trochlea, and of the external border of the ectocnemial 
* Published by permission of the Trustees of the British Museum. 
