500 Dr. Henry Woodward — Cretaceous Crustacea, Denmark. 



the protogastric lobes are but little conspicuous. (This is also the 

 case with a single specimen preserved in Miss Birley's collection.) 



This species is in many respects very similar to H. Edioardsii, 

 Bell,^ from the Gault and Greensand of England, a very peculiar 

 form, to a knowledge of which the late Mr. James Carter- has 

 made some very valuable contributions. In regard to the granulation 

 on the postero-branchial lobes the species from the Uppermost Chalk 

 (here described by Segerberg) is very similar to the Tertiary genus 

 JDromilites,^ which is also closely related to Homolopsis, and seems 

 thus to be a transitional form between these two genera. 



A single, very imperfect carapace is preserved in Miss Birley's 

 collection from the Danian of Faxe. 



CARPILIOPSIS. 

 Cakpiliopsis obnata, Von Fischer-Benzon, sp. (PI. XII, Figs. 5a, h.) 

 1867. Carpiliopsis ornata, Yon Fischer-Benzon, sp. : Alter d. Faxekalkes, p. 28, 



pi. ii, figs. 1-3, 

 1900. „ „ K. 0. Segerberg : Geol. Foren. I Stockholm Forhandl., 



Bd. xxii, H. 5, p. 28, pi. iii, figs. 15, 17, 18 ? 



Description. — The carapace is sub -elliptical, equally convex 

 longitudinally ; the lateral margins are acute ; the antero-lateral 

 margins are short, rounded, and curved backwards. The postero- 

 lateral margins are longer and are curved inwards. The orbits are 

 oval, and when seen from above marked by emarginations on either 

 side (PI. XII, Fig. 5a) of a broad, bluntly rounded, and slightly 

 notched rostrum (PI. XII, Fig. 56). The posterior margin is narrow 

 and emarginate. The upper surface of carapace is punctate, and 

 ornamented by raised lines and tubercles peculiar to the species ; 

 the general surface is very minutely ornamented with microscopic 

 granules. 



The mesogastric lobe is marked by two minute tubercles and 

 a small, short, raised line behind, probably affording the only 

 evidence of the presence of the cervical furrow ; there is a slight 

 trace of a median ridge and furrow, and a rather larger tubercle 

 marks the centre of each epigastric lobe. One tubercle on either 

 side and a few minute granules scattered over the protogastric and 

 hepatic regions are the only interruption to the otherwise smooth 

 anterior surface of the carapace. The cardiac region bears three 

 minute tubercles, and is enclosed on either side by a lyre-shaped 

 ridge and furrow, which bending back upon itself forms the short 

 lateral furrow. 



Eemakks. — This well - marked form is represented by two 

 examples in Miss Birley's collection, the larger measuring 12 mm. 

 in breadth by 7 mm. in depth, the lesser example being 9 mm. broad 

 and 6 mm. in depth. Both are from the uppermost Cretaceous 

 formation of Faxe, Denmark. 



The following is a list of the species of Crustacea from Faxe 

 recorded by K. 0. Segerberg and H. Woodward : — 



1 Bell, Crust, of Gault and Greensand : Mon. Pal. Soc, 1862, p. 23, pi. v, 

 figs. 1, 2. 



2 Carter: Decapod. Crust., 1898, p. 21. 



3 Bell : Crust, of London Clay, p. 27. 



