GIGANTOSTRACA. 
Crust. 57 
34 . [Reed, F. R. Cowper.] Woodwardian Museum Notes : Salter’s Un¬ 
described Species, n. Op. cit. (4) viii, pp. 5-14, pi. i. 
35 . -. Wood wardian Museum Notes : Salter’s Undescribed Species. 
in. T. c. pp. 106-110, pi. vii. 
36. Schluter, C. Ueber einige Versteinerungen des Unter-Devon. 
Zeitschr. Deutsch geol. Ges. lii, pp. 178-182, 2 figg. 
37 . Vogdes, A. W. Notes on Palaeozoic Crustacea. No. 5. Carboni¬ 
ferous Trilobites from Missouri. P. Calif. Ac. ( 2 ) vi, pp. 197 & 198, 
1 tig. 
38. Wanner, Atreus. A new Species of Olenellus from the Lower 
Cambrian of York County, Pennsylvania. P. Washington Ac. iii, 
pp. 267-272, pis. xxxi & xxxii. 
39 . Whitfield, R. P. List of the Fossils, Types and Figured Specimens, 
used in the Palaeontological Work of R. P. Whitfield, showing 
where they are probably to be found at the present time. Ann. 
N. York. Ac. xii, pp. 139-185. 
40. -. Note on the Hypostome of Lichas ( Tetraspis) grandis Hall. 
Bull. Amer. Mus. ix, pp. 45 & 46, 3 figg. 
41. Woodward, Henry. Note on some Carboniferous Trilobites. Geol. 
Mag. (iv) viii, pp. 152-154, pi. viii, figg. 6 - 8 . 
II. BIOLOGY. 
1. Morphology and Development. 
Anatomy and Nervous System of Limulus ; Patten & Redenbaugh 
(29). 
Endocrania of Limulus ; Patten & Redenbaugh (28). 
Visual organs of Trilobita discussed, and the maculae of the hypostoma 
of a number of species figured ; Lindstrom (19). See also G. R. H. (9). 
The Hypostome of Lichas grandis ; Whitfield (40). 
Organisation and Development of the Trilobites ; Oehlert (26). 
Growth of the Ovum. Centrosome and Yolk-nucleus in Limulus ; 
Munson (25). 
Development of the Coxal Gland, Branchial Cartilages and Genital 
Ducts of Limulus , Patten & Hazen (27). 
Relation of Limulus to origin of Vertebrata ; Gaskell (10). 
2. Distribution (General). 
Discussion of the Olenellus Fauna ; Matthew (22). 
The oldest Palaeozoic Faunas ; Matthew (21). 
The Waldron Fauna, Tarr Hole, Indiana ; Cumings (8). 
III. DISTRIBUTION. 
Lower Cambrian, York County, Pennsylvania: Trilobita , n. sp. of 
Olenellus ; Wanner (38). 
Cambrian : Blue Hills, Boston : Trilobita ; Crosby (7). Cape Breton : 
4 n. spp. of Trilobita ; Matthew (23). Missouri: n. g. of Eurypterida , 
etc.; Beecher (2 & 3). 
