THE 



GEOLOGICAL MAGAZINE. 



NEW SERIES. DECADE V. VOL. V. 



No. IX.— SEPTEMBER, 1908. 



<D:ElXGrXl<TJi^JL, .A-ROTICLES. 



I. — Some Coal-Measuke Crustaceans with Modern 

 Repeesentatiyes. 



By Henry Woodward, LL.D., F.R.S., F.G.S. 



AMON^G the numerous fossils obtained by Dr. L. Moysey from ^ 

 the clay-ironstone nodules of the Coal-measures near Ilkeston, 

 Derbyshire,' is one referred to by its discoverer as "a shrimp-like 

 animal," in a recent note published by him in the Geological 

 Magazine for May last.' Dr. Moysey was so fortunate as to secure 

 several well-preserved examples of this very interesting Schizopod 

 Crustacean from a disused brickfield on the Shipley Hall Estate, owned 

 by E. M. Mundy, Esq. These he most liberally placed in my hands 

 to examine and describe. Dr. Moysey also commended me to the 

 Eev. C. Hinscliff, M.A., of Craig Royston, Bickley, Kent, who had in 

 his possession another specimen of this crustacean obtained from the 

 same locality. Mr. Hinscliff not only sent me his fossil to study, but 

 generously presented it to the Geological Department of the British 

 Museum (JS'atural History Branch), Cromwell Road, where it will be 

 preserved and exhibited. 



- Pr^anaspides pe^cuesoe, H. "Woodw., gen. et sp. nov. 



Descnpiion of the fossil. — One of the largest and most perfect of 

 these Schizopod-like Crustaceans measures 57 mm. in length (see 

 Eig. 1). A second specimen is 30 mm. in length. A third, 

 showing the dorsal aspect, is 40 mm. long (Eig. 2). Mr. Hinscliff's 

 specimen (Eig. 3) is 30 mm. in length, but the head is imperfectly 

 preserved. A nearly complete small individual is 15mm. long; 

 it is associated with a fifth, but less perfect, example measuring 

 only 10 mm. in length. The two last-named are exposed on the 

 split surface of a nodule, lying one on either side of a Calamite stem. 



The fiead is extremely small, being only 6 mm. long, or equal in 

 length to the two anterior thoracic segments ; the rostral portion is 

 slightly produced and bent a little downwards ; the inferior margin 



1 "Two New Species of Eurypferus from the Coal- Measures, Derbyshire," 

 by H.Woodward: Geol. Mag., 1907, pp. 277-82, PI. XIII. 



'^ "On a Method of Splitting Ironstone Nodules by Freezing them," by 

 L. Moysey: Geol. Mag., 1908, pp. 220-2. 



DECADE v. — VOL. V. — NO. IX. 25 



