Reviews — Dr. S. JS. Scudder — On Fossil Insects. 131 



them are based on fragments from the Purbeck, which Westwood 

 named but did not describe ; or figured, but did not name ; or, which 

 Brodie found but did not name or describe. These wings are for 

 the most part fragmentary and must have required good courage to 

 found species upon them. Surely there is something wrong about 

 Pterinohlattina penna ! (pi. 22, fig. 14). Is it an insect- wing at all ? 



15. Is on some " New Types of Cockroaches from the Carboni- 

 ferous Deposits of the United States." These forms, which fill two 

 quarto plates, are considerably better-preserved remains than any 

 of the others previously figured ; fig. 5, pi. 23, Archimylacris pauci- 

 n^rvis, and fig. 3, pi. 24, Oryctohlattina occidua, being very remarkable 

 and aberrant forms. These cockroaches are from the Eichmond, 

 Ohio, coal-field, and from Mazon Creek, Illinois. 



16. This paper is devoted to more "New Carboniferous Myriapoda 

 from Illinois." The greater number of specimens are referred to the 

 genus Euphoberia and to eight species. The other to Acantherpestes, 

 ArcJiiulus, Xylobius, Ilyodes, Latzelia, Palcenarthrus and Eilecticus. 

 These are mostly from Mazon Creek, Illinois, and are very beautifully 

 drawn on six quarto plates illustrated by fifty-seven figures. 



17. Is devoted to "Illustrations of the Carboniferous Arachnida 

 of North America of the orders Anthracomarti and Pedipalpi." 



The Anthracomarti is said to be the only extinct order of Arach- 

 nida, and was established by Karsch for some interesting Carbon- 

 iferous forms allied to the PhrynidcS and Phalangidee, although very 

 distinct from either of them. 



To this group belong forms like Eophrynus Prestvici, H. W. 

 (1871), from the Coal-measures, CoaXhrook-dsde ; Architarbiis suh- 

 ovalis, H. W. (1872), Coal-measures, Lancashire; numerous allied 

 forms from the Permo-Carboniferous of Bohemia. Another form, 

 named by Woodward as Brachypyge carbonis (Geol. Mag. 1878, 

 PL XI, p. 434), from the Coal-measures of Belgium, has since been 

 removed (at the suggestion of Mr. Scudder) to the Anthracomarti, 

 near to Eophrynus (see Geol. Mag. 1887, p. 49, footnote). Scudder's 

 genus Geraphrynus (pi. 32, figs. 1, 9, 10) and his AntTiracomartus 

 (pi. 31, figs. 7-10) must be very near to Eophrynus. Of the order 

 Pedipalpi, Scudder's Geralinura carbonaria is also represented in the 

 Goal of Bohemia by several closely allied species. 



18. The last paper is on " The Insects of the Triassic beds at 

 Fairplay, Colorado." These include thirteen species of Paleeo- 

 blattarige and Blattariae and three species of Hemiptera. The 

 descriptions of these cockroaches are based on wings, but two or 

 three species are founded on the pronotum alone. 



The volume concludes with a Biographical note on Amei'ican 

 Literature, treating of the older fossil Insects ; followed by an Index 

 and thirty-four excellent plates. 



Most of the papers are undated and need references, but they 

 have, as a rule, been all published, in their present form, at various 

 times, in the Memoirs of the Boston Society of Natural History. 



Vol. II., which treats of the Tertiary Insects of North America, is 

 a reprint from vol. xiii. of the Keport of the United States Geological 



