PROCEEDINGS COTTESWOLD CLUB 
1 70 
1916 
Farm ; (2) quarry just to North of Tynewydd Farm ; and 
(3) shallow digging two-thirds of a mile North-East of Green- 
pool Farm. 
Remarks . — This small form may be regarded as mcjre 
allied to Ph. Stokesi Milne Edwards' than to Ph. elegans, Sars 
and Boeck.^ The much reduced and isolated second lateral 
furrows on the glabella, the long frontal lobe and strong third 
lateral furrows recall also Ph. Musheni Salter.^ The division 
of the first lateral furrow into two parts is always a marked 
feature in the two first-named species, but the greater dis- 
tinctness of the sub-circular composite lateral lobe in our 
form seems to mark it off from the typical Ph. Stokesi, and 
to warrant its separation as a definite variety. 
1 Salter, Mon. Brit. Trilob., p. 21, pi. ii., figs. 1-5 (non 6). 
2 Schroidt, Rev. Ostbalt. Silur. Trilob., Abth. i., p. 72, t. i, fig. i ; t. x., figs. 10-12 ; t. xi. 
fig. 17 ; Wigand, Zeitschr. Dent. Geol. Gesell., xl., 1888, p. 42. 
3 Salter, op. oil., p. 23, pi. ii., figs. 7-10 {?n, 12). 
