Reviews — The Palceontographical Society's Monographs. 181 



fine figures of remains of the Crocodilian genera Goniopholis, 

 Petrosuchus, and Suchosaurus. 



Prof. A. Leith Adams supplied in 1877 the first portion of a 

 much-wanted Monograph of the British Fossil Elephants. It 

 consists of descriptions of the dentition and osteology of Elephas' 

 antiquus, Falconer; with a useful Introduction, and five excellent 

 plates, by G-riesbach. 



In 1878 Dr. T. Wright gave part viii. of his Monograph of the 

 British Cretaceous Echinodermata, describing and figuring many 

 species of Epiaster, Micr aster, Eehinospatagus, Enallaster, and Car- 

 diaster. Several of these are among our most common fossils, and 

 have received so many dubious names and synovitis that both 

 collector and student will now be delighted to have a definite system 

 of nomenclature for use. The many figures in the eight plates are 

 exquisitely, almost too delicately, rendered ; they were the last work 

 of the lamented C. E. Bone. 



The Introduction, Index, and Title-page of Vol. I. of Dr. Wright's 

 Monograph of British Oolitic Echinoderms, began in 1857, also were 

 issued in 1878. 



The completion of Dr. H. Woodward's Monograph of the British 

 Fossil Merostomata, in 1878, is a subject of congratulation to the 

 Society, to the author, and to palaeontologists. The comparatively 

 rare occurrence of Pterygotus, Slimonia, Stylonurus, and Eurypterus, 

 of their Limuioid allies, Bellinurus, Prestwichia, and Neolimidus, and 

 of their obscure relation the Gyclus, all of Upper Palaeozoic age, 

 has been counterbalanced by the rather abundant specimens of 

 distinctive fragments and even individuals of some of the species. 

 These precious evidences of extinct life happily attracted the 

 attention of a Carcinologist who had opportunities and the will to 

 study eveiything that had already been written on these fossils, and 

 to think and work anew among the increasing store of specimens 

 brought under his notice, both in public collections, and by the courtesy 

 and consideration of friends and fellow-workers. How freely some 

 have helped, and how judiciously the author has availed himself of 

 previous useful discoveries and labours, his Monograph clearly 

 shows throughout; but more especially in the treatment and illus- 

 ti'ations of the larval Trilobites, after Barrande, — the larval Limulus, 

 after Packard and Dohrn, — and the anatomy of Limulus, at large, after 

 Owen. With this work off his mind, enriched with experience, and 

 lightened with the pleasant thought of well-spent labour, Dr. H. 

 Woodward will soon, we trust, contribute further Monographs on 

 legions of Crustacean Fossils to the Palasontographical Society. The 

 willing concurrence of geologists in helping on the work of the 

 Palaeontographical Society, so well shown, as above mentioned, in 

 this Monograph, is equally apparent throughout all the Monographs 

 yet published. 



The commencement of Prof. L. C. Miall's Monograph of the Sirenoid 

 and Crossopterygian Ganoids, in 1878, with 82 pages and six plates, 

 opens another pleasant vista to palichthyological students, like 

 that promised by Dr. Traquair's Monograph. The Introduction treats 



