SYSTEMATIC WORK. 
Mamin. 59 
Portis (299). On the fossil Cetacea of Italy. 
Pouchet & Beauregard (300), on the development of the spermaceti 
organ ; (301), on the development of whalebone. 
Proust (303). On the fossil Cetaceans found in the Baltringen beds 
near Laupheim. 
Southwell (348) and Cocks (69). On the Whale fishery in 1885. 
Weber (390). On the anatomy and phylogeuy of the Cetacea. 
BAL®NID®. 
Balama biscayensis. Beneden (39), monograph on this species of 
Whale; Newton (272), on its occurrence in the Norfolk Forest-bed. 
Balcenoptera borealis : Collett (71) on its external features and 
habits. B. musculus : Wilson (400), measurements, photograph, and 
external characters. B. sibbaldii : Smets (347), on the development of 
the skull. B. rostrata , borealis , musculus , and sibbaldii : Gjjjllhing (142), 
notes on their breeding habits. B. musculus and rostrata : Beauregard 
(35) and (3G), notes on captured specimens. B. musculus and borealis : 
Struthers (358), notes and measurements. B. gastaldii , cortesii , and 
4 new unnamed species, p. 310 : Portis (299), notes on fossil remains of 
these species. 
Cetotherium rathlcei. Beneden (41), description of remains from 
Caucasus. 
Mcgaptera sp. : Beauregard (37), note on captured specimen. M. longi- 
mana : Struthers (358), notes and measurements. M. boops : Building 
( 142), on its breeding habits. 
Physeterid.®. 
Physeter macrocephalus. Newton (272) on its occurrence in the 
Norfolk Forest-bed. 
Ilyperoodon rostratus. Turner (385) on its occurrence in British Seas, 
aud on its external anatomy and dentition. 
Mesoplodon bidens : Southwell & Clarke (349) on the occurrence of 
this species on the Yorkshire coast; Aurivillius (21) on the external 
characters and osteology of this rare Whale. 
Iloplocetus crassidens : Probst (303), description of remains from 
Baltringen. II. minor , n. sp., Portis, (299) p. 321, from the marine 
Pliocene of Andona. 
Physotherium solterii , n. g. & sp., Portis, (299) p. 325, from the 
marine Pliocene of Andona. 
Priscophyseter typus , n. g. & sp., Portis, (299) p. 315, from Pliocene 
Beds of Astigiana. 
Physodon leccense. Probst (303), description of remains from Bal- 
tringen. 
Ziphioides triangulus , n. sp., Z. obliquus, n. sp., Probst (303), fossil 
from Baltringen. 
Berardiopsis plioccenus, n. g. & sp., Portis, (299) p. 326, from the 
Valley of Astigiana. 
