Descripdou of (jenern and Species. 27 



swimmerets. The uropods are largely developed and are of the u^ual carideau character 

 (fig. 14), M. 3181''. All attempt to make a i-estoratiou is given in fig. 16, the only 

 structures not exhibited by the fossils figured behig the exopodites of the seven trunk legs, 

 some of which, however, have been observed in specimens in the collection that are not 

 figured. Breeding lamelte have also been observed in specimens from another locality.' 



Localities. — Near the foot of Tarras Water, Langholm, Dumfriesshire, and White- 

 adder Water, f of a mile below Allanton, Berwickshire. 



Horizon. — Cementstone Group, Calciferous Sandstone Series. 



Collector. — A. Macconochie. 



TeALLIOCAKIS FORMOSA (Peacli). PI. III., figs. 17, IS. 



1882. Anthrapalmmvn fonnosa B. N. Beach, Trans. Roy. Soc. Edin.. vol. xxx., 

 pt. i., p. 8:-'), pi. viii., fig. 8; pt. ii., 1883, p. 512, pi. xxviii. figs. 3-3b. 



Remarks. — There are several specimens of this form in the collection. As no new 

 point has been established with regard to this species, two of the figures are reproduced 

 from the Transactions of the Royal Society of Edinburgh, where the description of the 

 species was published. One of these (fig. 17) shows the carapace and the other (fig. 

 18) shows the tail with its terminal fimbriated lobe so characteristic of this group of 

 Lophogastrids. 



The only form that this might be confounded with is T. tarrasiana, but the 

 present is a much larger form and more elongated relatively in the tail. 



Locality. — Glencarthohn, Langholm, Dumfriesshire. 



Ilorizoti. — Scorpion bed, Calciferous Sandstone Series. 



Collector. — A. Jlacconochie. 



Gemis PSEUDO-GALATHEA Peach, 1883. 



1883. Pseudo-Galatheo B. N. Peacii, Trans. Roy. Soc. Edin., vol. x.\.\.. p. .")13. 



Remarks. — A further study of the specimens belonging to this genus, in the light 

 of G. O. Sars' Report on the Schizopoda l)rought home by the Challenger, convinced 

 me man)' years ago that they ought to be classed with Tiophogastrid Schizopods rather 

 than with macrurous Decapods, among which I arranged tliem in my original descrip- 

 tion pu'olished in the Transactions of the Roj'al Society of Edinl)urgh. 



' SiK-cimen M. 27t9*' ((ic(il(ii.nc;d Survey regi.'^Uixfion iiuiiiljer) 



