THE ANATOMY OF THE COLUMBZ. 237 
between the Pigeons and Fowls is observed, which also shows that 
Pterocles is one of the former. In Columba and the whole suborder 
this muscle is small, narrow, and elliptical ; but in Gallus and all its 
allies it is triangular and very large at its base. The similar number Page 256. 
of carotid arteries in the Columbidz, Pteroclidw, and Galline pre- 
vents any inference being drawn from them; and the same may be 
said of the cesophageal crop. 
In the ceca of the intestine in the Pteroclide there is, no doubt, 
a strong likeness to the Galline; for whilst, as above shown, they 
are very short or absent in the Columba, they are voluminous and 
long in the Sand-Grouse and Fowls, being in the former between 
4 and 5 inches from end to end. As in all the Galline and some 
Columb (Carpophaga and Ptilopus), the Pteroclide possess a gall- 
bladder. — 
The following Table gives the length of the intestine, from the 
gizzard to the cloaca, in the species named. The most peculiar point 
to be noticed is its excessive length in Diduneulus :— 
Name of bird. eee 
ft. in. 
Carpophaga sp. the.* .. 2.0... ee cece cee 110 
é OOM POPC ET Few dete cbs 6 xis Sas cere a's PG 
: Chaleopelia chaleospilos...............4+. 1 6 
Chaleophaps chrysochlora .......... Eee St 
Columba maculosa.... 2.0.26. 02. e ee eee 2 8 
Didunculus strigirostris.......0..0..004.. a 
Ectopistes migratorius .............2204. 2 6 
Geopelia cumeata .. sd ee a e 0 8 
el a de ee, et ee 1 6 
a NN eee as nk vas he ee 1 eae 
derecho ET eee eee 0 113 
GONG LOTURREE Bestes ss See RRS. ot 
WUE See Blake oss See tek Gewese 4 0 
Lopholemus antarcticus................-. 1 42 
Macropygia phasianella.................. 2 8 
Metriopelia melanoptera ................ 2 0 
Ocyphaps lophotes .........--00000.000- 2 3 
Phape-cohaloopterg. 00. 85 ges os Sen 3 2 6 
Phorooles aleliala és 22. T5 ow. EG 
PONE E85 ate Soe Seed» ws 2 1 
ETOP ME SOOM isd odie ye vine és wos ne z.0 
* (Called, probably by mistake, C. aurora in the original. Cf. Salvadori, 
“ Monografia del Sottogenere @lobicera,” p.16. Turin, 1878. Ep.] 
