362 II. Woodward— Anthrapalazmon from M. Coal-measures. 



" With the exception of Anthrapaleomon Parkii, A. Traqiiairii, and 

 A. Etheridgei, which measure from 3 to 5 inches, the other species 

 do not exceed 1 to 2 inches in their entire length. 



"The carapace and body-segments were evidently and usually 

 broadly expanded, as in the Eryonidje ; the lax'ge scale at the base of 

 the outer antennae suggests the Pen^id^ ; the strong basal joints of 

 the inner pair of antennae with bifid flagella, and. the outer pair with 

 single ones, are like many of the modern Caridea and Astacidea ; the 

 caudal appendages forcibly recall the rhipidina of the living Galatheidse, 

 in which, as in some ancient forms, there are two additional broad 

 lamellae to the tail-fan, developed one on either side of the telson. 



"In the spinose ornamentation of the somites and caudal plates, 

 in the broadening out of the segments of the abdomen and the short 

 rounded form of the cephalo-thoracic shield in Anthrapalcemon Parkii, 

 one is reminded of the genus Squitta, though probably this is only 

 an analogy " (pp. xcviii, xcix). 



I quote this last paragraph to show that, in 1896, I had a strong 

 conviction that these forms from Eskdale, placed at that time under 

 Anthrapalcemon by Dr. B. N. Peach, 1 deserved to be referred to 

 a distinct genus, and a recent study of the rich materials from Glen- 

 cartholm in the British Museum convinces me of the propriety of their 

 subsequent separation by him. 



Dr. B. N. Peach's original essay already referred to (see Trans. 

 Boy. Soc. Edinb., vol. xxx, p. 73, 1882; p. 511, 1883) was 

 followed, in 1908, by a most important memoir, published by the 

 Geological Survey of Great Britain, entitled "A Monograph on the 

 higher Crustacea of the Carboniferous Bocks of Scotland ", 4to (issued 

 October 28, 1908), pp. 82, pis. i-xiii, in which, in addition to the 

 specimens figured in the previous work, he incorporated all the new 

 material added to the Survey Collection between 1883 and 1905, and 

 made a complete and very careful revision of the earlier work. 



The species dealt with are placed under the following genera, 

 namely : — 



C Tealliocaris, Peach, 1908, with 9 species and varieties. 

 j , Pseudo-Galathea, Peach, 1883, with 3 species. 



1 . 1 " -I Anthrapalcemon, Salter, 1861, with 2 species and 

 ° ' varieties. 



\Pygoccphalus, Huxley, 1857, with 1 species. 

 Perimectu- Perimecturus, Peach, 1908, with 7 species and 



ridse. variety. 



Anaspidffi. Palaocaris, Meek & Worthen, 1868, with 2 species. 

 V MysidsB. Palcemysis, Peach, 1908, with 3 species. 



-r, , [ Anthracophatisia, Peach, 1908, with 3 species and 



Euphau- J • i.- 



.Jij -j varieties. 



O Sltt£e - [ Crangopsis, Salter, 1863, with 10 species. 



o S<6 



■XT* 



1 Dr. B. N. Peach, Trans. Koy. Soc. Edinb., vol. xxx, p. 73, 1882; 

 p. 511, 1883. 



2 Without in any way desiring to detract from the great value and importance 

 of Dr. Peach's monograph, it may be well to bear in mind the caution expressed 

 by Dr. W. T. Caiman in his review of Dr. Peach's memoir in the Geological 

 Magazine for 1909 (pp. 76-8) as regards the reference of all these forms to the 



