10 Pisces. 
PISCES. 
Parker, W. K. On the Structure and Development of the Skull in 
Sturgeons ( Acipenser ruthenus and A. sturio). Phil. Tr. clxxiii. 
pp. 139-185, pis. xii.-xviii. 
. On the Development of the. Skull in Lepulosteus osseus. L. c. 
pp. 443-491, pis. xxx.-xxxviii. (Abstract in P. R. S. xxxiii. 
pp. 107-112.) 
Schneider, H. Ueber die Augenmuskeln der Ganoiden. Jen. Z. Nat. 
xv. pp. 215-242, pis. vii. & viii. 
Wijhe, J. W. Van. Ueber das Visceralskelett und die Nerven des 
Kopfes der Ganoiden und von Ceratodus. Niederl. Arch. Zool. v. 
pp. 207-320, pis. xv. & xvi. 
Ganopristodus splendens, Traq. (foss.) .Further notes ; possibly Gano - 
pristodus = Uronemus, Ag. Traquair, Geol. Mag. (2) ix. p. 543. 
Ctenodus. On the occurrence of this genus in the Oil Shales near 
West Calder. J. Gibson, P. Phys. Soc. Ediub. 1882, pp. 190-192. 
Acipenser molassius , p. 121, figs. 1-5, 10-14, & 16, and tuberculosus , 
p. 127, figs. 6-9 & 15, spp. nn. (foss.) ; Probst, JH. Ver. Wiirtt. xxxviii. 
pi. ii. Molasse of Baltringen, Germany. 
Polypterus. Steindachuer points out the differential characters of, 
and figures the three forms occurring in the Nile, viz., P. senegalus , 
Cuv., bichir , Geoffr., and endlicheri , Heck., which forms he pronounces 
to be specifically distinct ; Denk. Ak. Wien, xliv. pp. 52 & 53, pis. viii. 
& ix. 
Pycnodus bathonicus , sp. n. (foss.) (== P, affinis, Sauv. nec Nicol.), 
Sauvage, Bull. Soc. Geol. Fr. (3) viii. p. 527, pi. xix. fig. 1, Jurassic of 
Boulogne-sur-Mer. 
Mesodon morinicus , sp. n. (foss.), id. 1. c. p. 528, pi. xix. fig. 2, J urassic 
of Boulogne-sur-Mer. 
Athrodon, g. n. (foss.) Allied to Pycnodus ; id. 1. c. p. 530. A. douvillii , 
p. 530, and boloniensis , p. 531, spp. nn., id. ibid., Jurassic of Boulogne- 
sur-Mer. 
Strepsodus striatulus , sp. n. (foss.), Traquair, Geol. Mag. (2) ix. p. 544, 
Blackband Ironstone of Borough Lee, near Edinburgh. 
Elonichthys pectinatus, Traq. (foss.), notes by Traquair, l. c. p. 545. 
Gonatodus parvidens , sp. n. (foss.), id. 1. c. p. 546, Blackband Iron- 
stone of Borough Leo. 
TELEOSTEI. 
Agassiz, A. On the young stages of some osseous Fishes. Part ii. 
P. Am. Acad. xiv. pp. 1-25, pis. i.-x. 
[Omitted from the precediug Record.] 
Treats of the development of the Flounder ( Pleuronectes americanus , 
P seudorrhombus macidatus , P. melanogaster , P. oblongus , Rhombus macula- 
tus , Plagusia , sp.). Part iii. Op. cit. xvii. pp. 271-303, pis. i.-xx. 
Treats of the following forms: — Labrax lineatus , Temnodon saltutor , 
Stromateus triacanthus , Atherinichthys notata , Batrachus tau , Lophius 
