Contributions to Fossil Crustacea. 393 



Phyllopods. This view might account for the two large round 

 structures seen on the ventral surface, situated one on either side of 

 the body, and close to the anterior margin of the shell. These 

 might possibly represent a pair of ventral suckers, such as are seen 

 in the modern fish-lice ; these structures, whatever they may be, 

 are evidently enormously developed, and possess great muscles, 

 which produce prominent modifications of the dorsal shield, where 

 they are attached. The great labrum might possibly represent the 

 suctorial tube of Argidus, under cover of which, are concealed the 

 reduced mandibles, etc. 



" Some of the specimens show cui'ious oblique scars on the coxse 

 of the legs, which may indicate the points of attachment of spines 

 or setse to enable the parasite to stick to its fishy host." (Geol. 

 Mag., 1894, pp. 534-5.) 



3. Anthrapal^mon glaber, Jones & Woodw. (PL XV, Fig. 5.) 

 This small cephalothoracic shield of a Macrouran Decapod Crus- 

 tacean was obligingly sent to us by our friend and correspondent, 

 Mr. John Smith, of Monkredding, Kilwinning, who obtained it in 

 the Coal-measure series of Kilmaurs, Ayrshire. The other specimens 

 which accompanied, this will be dealt with elsewhere. The specimen, 

 which is 7 mm. long and 5 mm. in breadth, displays a gently rounded, 

 almost smooth carapace, preserved on a fragment of fawn-coloured 

 shale enclosing plant-remains. The carapace has no dorsal ridge, but 

 there is a well-marked cervical furrow forming an open V- shaped 

 depression across the carapace in the centre ; a small but prominent 

 rostrum is seen in front, and the cervical furrow gives rise to 

 a gastric furrow and spine on either side, only one of which, how- 

 ever, that on the right side, is preserved. The sides of the carapace 

 are slightly expanded and smoothly arched, and there is a faint trace 

 of a serrated border on the hepatic region, terminating in a short 

 anteriorly directed spine. The posterior border is deeply and 

 roundly emarginated, and has a thickened, raised, and smooth rim. 

 The surface of the test is smooth, and quite free from ornamentation. 

 The specimen closely resembles Anthrapalcemon Etlieridgei, figured 

 and described by Mr. B. N. Peach, F.E.S., from Eskdale (see Trans. 

 Koy. Soc. Edinb., 1883, vol. xxx, figs. 4 and 5), but may be 

 specifically separated from it by its absence of ornamentation; it 

 may bear the trivial name of A. glaber. 



Locality. — Coal-measures : Kilmaurs, Ayrshire. 



4. Echinooaris Whidbornei, Jones & Woodw. (PL XV, Fig. 6.) 

 The follov/ing note on EcMnocaris has been most obligingly sent 



to us, together with the three specimens, by Mr. A. K. Coomara- 

 Swamy, the discoverer of the beautiful specimen drawn on PL XV, 

 Fig. 6 :— 



" This phyllopod was first described and figured in the Geol. Mag., 

 Dec. Ill, Vol. VI (1889), p. 385, PL XI, Fig. 1, by Professor Rupert 

 Jones and Dr. H. Woodward, from a specimen found by Mr. Dufton 

 in a quarry at Sloly, near Barnstaple, in beds of the Baggy or 

 Marwood series, associated with Lingula squamiformis and other 



