[1921] XVI. Mammalia. Mam. 13 
Parsons, H. T. vide McCollum, E. V. 
284. — Paschkis, K. tjber das 
Fehlen von Papillae vallatae in der 
Zunge von Hippopotamus amphibius. 
Anat. Anz. Jena 51 1918 pp. 446-454. 
285. — Pax, F. Die Verbeitung des 
Siebenschlafers in Schlesien. Arch. 
Natg. Berlin Abt. A. 84 Hft. 10 
1920 pp. 156-161 1 fig. 
286. — Pearson, K. and Davin, A. G. 
On the sesamoids of the knee-joint. 
Biometrika Cambridge 13 1921 pp. 
133-172 18 plates; pp. 350-394 19 
plates and chart. 
287. — P6ringuey, L. A note on the 
whales frequenting South African 
Waters. Trans. Roy. Soc. S. Afric. 
9 1921 pp. 73-76 pi. i. 
288. — Peyer, B. Zum “ Problem, der 
Enstehung der Zahnform.” Anat. 
Anz. Jena 53 1920 pp. 107-111. 
289. — Pfizenmayer, E. W. Bastar- 
dierungen von Cavicorniern in Trans- 
kaukasien. SitzBcr. Ges. natf. 
Freunde Berlin 1920 1920 pp. 154-167 
3 pis. 
290. — Pictet, A. and Ferrers, Mdlle. 
Recherches de gen^tique dans des 
croisements de Cobayes. C. R. Soc. 
Phys. Hist. Nat. Geneve 38 1921 Ire 
partie pp. 32-37 2me partie pp. 56- 
<50 3me partie pp. 97-100. 
291. — Pieragnoli, L. Ossa patologiche 
nella grotta di Equi in Lunigiana. 
Palaeontogr. Italica Pisa 25 1919 pp. 
1-35 7 pis. 
292. — Ping, C. On the growth of the 
largest nerve cells in the superior 
cervical sympathetic ganglion of the 
Norway rat. J. Comp. Neur. Phil- 
adelphia 33 1921 pp. 313-338 5 charts. 
293. — Ping, C. On the growth of 
the largest nerve cells in the superior 
cervical sympathetic ganglion of the 
albino rat — from birth to maturity. 
J. Comp. Neur. Philadelphia 33 1921 
pp. 281-311 7 figs. 
294. — Pocock, R. I. The systematic 
value of the glans penis in Macaque 
Monkeys. Ann. Mag. Nat. Hist. 
London (9) 7 1921 pp. 224-229. 
295. — Pocock, R. I. A new species 
of Bassaricyon. Ann. Mag. Nat. Hist. 
London (9) 7 1921 pp. 229-234. 
296. — Pocock, R. I. The external 
Characters and Classification of the 
Procyonidae. Proc. Zool. Soc. London 
1921 1921 pp. 389-422 text-figs 1-13. 
297. — Pocock, R. I. The auditory 
bulla and other cranial characters in 
the Mustelidae. Proc. Zool. Soc. 
London 1921 1921 pp. 472-486 text- 
figs. 14-18. 
298. — Pocock, R. I. On the external 
characters of some species of Lutrinae 
(Otters). Proc. Zool. Soc. London 
1921 1921 pp. 535-546 text-figs 19- 
21 . 
299. — Pocock, R. I. The external 
characters of the Koala ( Phascolarclos ) 
and some related Marsupials. Proc. 
Zool. Soc. London 1921 1921 pp. 591- 
607 text-figs. 22-26. 
300. — Pohle, H. Ueber den phy- 
siologischen Zahnausfall. SitzBer. Ges. 
natf. Freunde Berlin 1921 1921 pp. 
115-122. 
301. — Portis, A. Elenco delle specie 
di cervicorni fossili in Roma e attorno 
a Roma. Boll. Soc. Geol. Ital. Rome 
39 1920 pp. 132-139. 
302. — Prinzhorn, F. Die Haut und 
die Riickbildung der Haare beim 
Nackthunde (Fauna et Anatomia cey- 
lanica, No. 6). Jenaische Zs. Natw. 57 
1921 pp. 143-198. 
303. — Przibam, H. Temperatur- 
unabhangigkeit der weiblichen Periode 
und Gravida t bei Ratten, Mus decu- 
manus und Mus rattus (die Umwelt des 
Keimplasmus vii). Anz. Alcad. Wiss. 
Wien. 56 1919 pp. 251. 
304. — Raw, F. A Mammoth Molar 
from North Woodchester, near Stroud. 
Geol. Mag. London 58 1921 pp. 502- 
505 1 plate. 
305. — Reichel, H. Die Saisonfunk- 
tion des Nebenhodens vom Maulwurf. 
Anat. Anz. Jena 54 1921 pp. 129-149. 
306. — Reisinger, L. Die spezifischen 
Driisen den Bisamratte. Anat. Anz. 
Jena 49 1916 pp. 321-328. 
307. — Remane, A. Zur Beurteilung 
der fossilen Anthropoiden. Centralbl. 
Min. Stuttgart 1921 pp. 335-339. 
308. — Remane, A. Beitrage zur 
Morphologie des Anthropoidengebisses. 
Arch. Natg. Berlin Abt. A. 87 Hft. 11 
1921 pp. 1-179 31 figs. 
