SYSTEMATIC, CEPHALOPODA. 
Moll. 47 
Cauibro-silurian : HyoUthidcc with Orthotheca , n. subg., and Conula- 
riidoi with Torellalla , n. g. ; many new species ; HolM (169). 
Ordovician : Gastropoda of the Trenton Limestone of Manitoba, with 
Loxonema winnipegense , n. sp. ; Whiteaves, Canad. Rec. v, pp. 317-328, 
%g- 
1Y. — SYSTEMATIC.! 
Introduction to the study of Mollusca ; Pelseneer, Mem. Soc. malac. 
Belgique, 1892 (1894), pp. 31-243, figg. : also separately. 
Recent progress in Conchology ; Woodward, Nat. Sci. iii, pp. 35-39. 
Notes on recent researches into the morphology of univalve Mollusca ; 
Fischer, J. Conchyl. xli, pp. 5-15. 
I. CEPHALOPODA. 
Summary of Swedish Cephalopoda ; LOnnberg, Bih. Svenska Ak. xvii 
(1891), Afd 4, No. 6, 41 pp , 1 pi. 
Note on the Chromatophores ; Samassa, Yerh. Yer. Heidelberg, v, 
pp. 133-138, fig. — Reply to criticisms on the question of the Chro- 
matophores ; Joubin, Arch. Zool. exp. (3)i, pp. 95-103. — Paralysis of 
the Chromatophores produced by destruction of the nerve ganglia ; 
Piiisalix, C.R. Ac. Sci. cxvii, pp. 638-640, and C.R. Soc. Biol, v, 
pp. 887-889. 
On the lingual cartilage and cartilaginous tissues ; Loisel, C.R. Soc. 
Biol, v, pp. 244-246. 
DIBBANOHIATA. 
OCTOPODA. 
Eledone moschata , Lamk., physiological researches on nervous system ; 
Uexkull, Zeitschr. Biol, xxviii (1891), pp. 550-566, & xxx, 
pp. 178-186, & 317-327, 1 pi. E. cirrhosa , note on a case of double 
hectocotylisation ; AppellOf, Bergens Mus. Aarbog., Afhandl. i. 
Octopus , habits of, in captivity; Hornell, J. Marine Zool. i, pp. 9-11. 
DECAPODA. 
Chiroteuthis : structure of coloured organs on the skin of two species ; 
Joubin, Mem. Soc. zool. France, vi, pp. 331-343. 
C. lonplandi , Yer., peculiar chromatophores in; Joubin, Bull. Soc. 
zool. France, xviii, pp. 146-151, figg. 
Histioteuthis ruppellii, phosphorescent organs; Joubin, C.R. Soc. Biol, 
y, pp. 142-146, fig. 
f Sepia caralitana, p. 165, lovisatoi , p. 167, n. spp., Miocene, Sardinia, 
Parona, Atti Soc. Ital. xxxiv, figg. 
t This sign indicates that the reference is palaeontological. 
[1893. YOL. XXI.] C 15 
