THE 



OEOLOGICAL MAGAZINE, 



NEW SERIES. DECADE V. VOL. V. 



No. X.— OCTOBER, 1908. 



<DJR,XCrXJSrJ^lL. -A.T?,TICLES_ 



I. — Sedgavice Museum JS'oxes : New Fossils feom the Haveeeoed- 



WEST DiSTEICT. YIII. 



By F. E. CoT\'PER Eeed, M.A., F.G.S. 



(PLATE XIV.) 



Typhloniscus princeps, sp. nov. (PI. XIV, Figs. 1-3.) 



Head- shield broadly semicircular, gently convex ; posterior margin 

 nearly straight ; middle shield projecting slightly in front of cheeks, 

 and rather bent down. Glabella subquadrate, length slightly greater 

 than width, front truncate, nearly parallel-sided, widening a little 

 anteriorly to maximum across first lateral lobes, moderately convex 

 from side to side, rising gradually in height from back to front, where 

 it is somewhat swollen and slightly overhangs anterior margin of head- 

 shield ; sides marked with three pairs of regular, subparallel, sub- 

 equal, and nearly equidistant, strong lateral furrows ; anterior pair 

 nearly straight, directed a little obliquely backwards, and extending 

 inwards for about one-third the width of the glabella, situated far 

 forward at about one-fourth the length of the glabella, and a little in 

 front of the point of junction of the axial and marginal furrows; 

 frontal lobe short, broad ; second pair of lateral furrows nearly 

 straight, arising a little in front of middle of glabella, running inwards 

 parallel to first pair, but a little longer ; first lateral lobes with parallel 

 sides ; third or basal pair of furrows with inner portion curved back, 

 but not reaching occipital furrow ; second lateral lobes of same length 

 along axial furrow as first pair; basal lobes subrhomboidal, rather 

 less than one-third the width of the glabella. Occipital furrow 

 strong, arched forward slightly in middle and at sides. Occipital 

 ring rounded, rather narrow, a little wider in middle. Surface of 

 glabella and occipital ring ornamented with rather coarse tubercles, 

 with smaller ones interspersed. Axial furrows strong, straight, 

 meeting marginal furrows at right angles a little behind first lateral 

 furrows of glabella. 



Cheeks triangular, rather wider than glabella, moderately and 

 uniformly swollen, without eyes or facial sutures, ornamented with 

 tubercles like the glabella, and, in addition, with coarse circular 



ECADE T. — VOL. T. — NO. X. 28 



