OSTRACOPHORI, CHON DROPTERYGII. 
Pisces 51 
OSTHACOPHORL 
Pteraspis dunensis , comploto description, microscopic structure of armour, 
Drevermann, Zeitschr. Deutsch. geol. Qes. lvi, pp. 275-289. 
Drepanaspis gemiindenensis , orientation of exoskeloton, Traquair, Tr. R. 
Soc. Edinb. xii, pp. 469-475, pis. i-iii. 
Thelodus scoticus , new information on, Traquair, op. cit. xl, p. 880. 
Lasanius problematicus y re-described and figured, Traquair, t. c. p. 886. 
Ateleaspis tessellata , described, with much new information, Traquair, 
t. c. p. 883. 
Dinichthys curtus , Newb., and D. darlci , Clayp., described, defined and 
figured, Hussakof, Bull. Amer. Mus. xxi, pp. 410-414. 
Dinichthys intermedius , notes and figure, Hussakof, t. c. pp. 27-36, pi. v. 
CHONDROPTERYGII. 
HOLOCEPHALI. 
Denticles, oral and pharyngeal, Holocephali and Elasmobranchs, Imms, 
P. Z. S. 1905, i, pp. 41-49, pi. iii. 
Chimcera jordani and owstoni, spp. n., between phantasma and mitsukurii , 
Tanaka, J. Coll. Tokyo xx, art. ii, pp. 1-14, pis. i & ii, Sagami Sea. 
Chimcera , embryological evidence as to the position of, Dean, C.R. Congr. 
internat. Berne, p. 294. 
PLAGIOSTOMI. 
Pretertiary and Tertiary Elasmobranchs, Joleaud, Mem. Ac. Vaucluso v, 
1905, pp. 392-420. 
Tertiary Selachians of Southern Italy, Pasquale, Atti Acc. Napoli xii, 
No. 2, pp. 1-32, 1 pi. 
The development of the head ganglia and of the sensory canals, W. Klink- 
hardt, Jena. Zeitschr. lx (n. f. xxxiii), pp. 423-486, pis. xiv-xvi and 
text-figg. 
Nervus tcrminalis , new ganglionated nerve of Selachians, Locy, Science 
xxii, pp. 180-183. 
Denticles, oral and pharyngeal, of Elasmobranchs and Holocephali, Imms, 
P. Z. S. 1905, i, pp. 41-49, pi. iii. 
Physiology of digestive tract of Elasmobranchs, Sullivan, Amer. J. 
Physiol, xv, pp. 42-45. 
Selachian retina, structure, Retzius, Biol. Untersuch. xii, pp. 55-61, pi. vi. 
Scyllium, movement and inhibition, special phenomena, v. Rynberk, 
Arch. ital. Biol, xliii, pp. 3-8. 
Scyllium stellare , yolk sac circulation, development of, Hochstetter, 
Arch. mikr. Anat. lxvi, pp. 549-560, pi. xxxvii. 
Centrina, segmental funnels, persistent, Borcea, Trav. Univ. Rennes iii, 
1904, pp. 178 & 179. 
Torpedo marmorata y goblet colls with acidophil granules, IIelly, Arch, 
mikr. Anat. lxvi, pp. 434-439, pi. xxix. 
Torpedo , central nervous system, regularity, Borchert, Anat. Anz. xxvi, 
p. 289. 
Squaloidei , teeth, described, with bibliography and figured from middle 
and upper Eocene of Egypt, Stromer, Beitr. Pal. Oesterr.-Ung. xviii, 
p. 164, pi. xv. 
