THE GENE RAT, SUBJECT. 
Mamm. 17 
[Scott, W. B.] [See also p. 45, Poebrothcriidcc . ] 
Seydel, O. [See p. 20, Primates .] 
Siierborn, C. D. On the Dates of the Parts, Plates, and Text of 
Schreber’s “ Saugethiere.” P. Z. S. 1891, pp. 587-592. 
Shields, G. 0. The Big Game of North America. London : 1890, 
8vo, 581 pp. [Omitted from Zool. Rec. xxvii.] 
A series of articles on tho large Mammals by various writers, mainly 
treating the subject from the sporting aspect. 
Siiufeldt, R. W. [See p. 44, Cervidce.] 
Slade, D. D. [See p. 52, Dasypodidce.] 
Somerville, J. T. [See p. 30, Muridce .] 
Squinabol, S. [See p. 45, Anthracotheriidce.] 
Staurengki, 0. Dell’ Inesistenza di Ossa Pre- e Postfrontali nel Cranio 
Umano e dei Mammiferi, con un’ appendice sulla quistione dell’ 
Ossa Sfonotico dei Mammiferi. Milan : 1891, 105 pp., 5 pls.‘ 
Noticed in Monit. Zool. Ital. ii, p. 218. The author disputes the view 
that remnants of the pre- and postfrontals of the lower Vertebrates are 
to be met with in Mammals. 
Stewart, C. [See p. 58, Ornithorhynchidce.] 
Stirling, E. C. [See p. 56, Notoryctidce .] 
Strahl, — . Ueber den Bau der Placenta. SB. Ges. Marb. 1890, 
pp. 13-18. 
A third contribution, based on the researches of the author, to the 
structure and anatomy of the placenta. 
Symmington, J. [See p. 21, Simiidce , and p. 58, Ornithorhynchidce.'] 
Tanja, T. Ueber die Grenzen der Pleurahohlen bei den Primaten, und 
bei einigen Anderen Saugethieren. Morph. *JB. xvii, pp. 145-197, 
pis. ix-xii. 
A determination of the limits of the lung-cavities in Primates and 
some other Mammals, together with a record of their gradual increase in 
size in human foetuses of different ages. 
Tavernari, L. [See p. 21, Cercopithecidce.] 
Tegetmeier, W. B. [See p. 56, Notoryctidce.] 
Thomas, O. On a Collection of Small Mammals made by Mr. F. J. 
Jackson in Eastern Africa. P. Z. S. 1891, pp. 181-187, pi. xv. 
15 species are recorded, of which a Nyctinomus, Otomys, and Rhizomys 
are new. [See Emballonuridce, Muridce, and Spalacidce.] 
. Preliminary Diagnoses of Four New Mammals from East Africa. 
Ann. N. H. (6) vii, pp. 1 & 2. 
Includes Nyctinomus lobatus, Otomys jacksoni , Rhizomys annectans , and 
Cervicapra clarlcei. [See Emballonuridce , Muridce , Spalacidce , and Bovidce.] 
J 891 . [vol. xxviii.] o 2 
