BIBLIOGRAPHY OF PALASOZOIC CRUSTACEA 99 
RUEDEMANN (Rudolf)-—Continued 
peria, but belong among the families of Opisthoparia. ‘The figure of Cryptolithus 
tesselatus shows the lateral facial suture and the lateral eye tubercle, also median eye 
tubercle. 
Plate 36 contains a few figures of various genera of ‘Trilobites with median eye tu- 
bercle, such as: 
Isoteloides homalonotoides Wale. Symphysurus convexus Cleland. Basilicus Kegel- 
ensis Sch. Symphysurus angustatus 8. & B. Asaphellus monticola Raym. Asaphus 
ludibundus mut. jewensis Schm. Hemigyraspis collicana Raym. Nileus Armadillo Dalm. 
Ceratopyge forficula Sars. Niobe insignis Lints. Barrandia crassa Barr. A glina um- 
bonata Illaenus oriens M. & §. Bronteus Haidingeri Barr. 
—— and Clarke (John M.)- Catalogue of the type specimens of 
Palwozoie Fossils in New York State Museum. 
Bull. New York State Museum, No. 65, 1903. 
Crustacea, pp. 658-765 and 814. 
Classification of the type specimens by geologic formations, pp. 815-847. 
Sarle (Clifton J.) A new Eurypterid fauna from the base of the 
Salina of Western New York. 
Bull. New York State Mus., No. 69, 1903, pp. 1087-1108, pls. 6-26. 
The author proposed a new genus Hughmilleria for a small form, which from its 
general appearance in many ways suggests the genus Eurypterus, but a study of its 
structure shows it to be closely related to Pterygotus. 
The author described Hiughmilleria socialis nov. and var. robusta noy. var. A new 
species of Eurypterus is included under the name of FE. pitisfordensis, which closely re- 
sembles FE. lacustris, approximately of the same size, also in the position and shape of 
the eyes. The posterior portion of the cephalon flares out in FE. pittsfordensis, or at 
least broadens out in a hyperbolic curve, while FE. lacustris is marked by ther nearly 
parallel sides of the cephalon. 
The author also describes Plerygofus monroensis nov. 
Savage (7. H.) Stratigraphy and Paleontology of the Alexanderinn 
series in Missouri and Illinois, part one. 
Bull, No. 23, State Geol. Sur. Illinois, 1913, 124 pp., with 7 plates. 
The author describes Proetus princeps n. sp. ‘This rare specimen from the Thebes, 
Illinois, has a glabella resembling that of P. determinatus Foerste, and differs but 
slightly from the Edgewood species. From the Girardeau limestone, Shumard, 
Geol. Mo., 1855, p. 198, gives the name of Proetus depressus to a species without figure 
or description. This is not the P. depressus Weller, Pal. N. J., vol. 3, p. 249. 
The author also describes Cyphaspis girardeauensis Shamard.  Acidaspis Halli 
Shumard. Encrinurus deltoideus Shumard and Calymmene dubia vn. sp. which re- 
sembles Calymmene platycephala Foerste. 
From the Edgewood series of Illinois the author describes: 
Proetus determinatus Foerste, described as Bathyurus Foerste in the Bull. Lab. Den. 
Univ. vol: 1, p, 103, pl 14 fig. 5, 1885. 
Cyphaspis intermedia Weller, and Metapolichas breviceps var. clintonensis Foerste. 
Dalmanites Danai Meek and Worthen. 
The species resembles D. limulurus Green, but somewhat larger. 
From Channahon, Ilinois, the author describes Proetus channahonensis Weller. It 
has a more prominent glabella and deeper glabella furrows than P. determinatus 
Foerste. 
