396 Albany Museum Records. 



neck furrow to front suture, 1.55 cm., from neck furrow to base 

 of first axial furrow, 0.5 cm. Width between the eyes (inner 

 margin of facets), 1.9 cm. • 



Cat. No. 27. Locality. Gydow Pass, Ceres. Donor : Mr. A. 

 G. Bain. 



Cat. No. G7, Type. No locality. Donor : Mr. A. G. Bain. 



Phacnps (Cryjihaeus) gychnci^ iiov. sp. 



PI. X., Figs. 3, 3a, 3b, 3c. 



This species is represented by a well pi*eserved head and two 

 rather indistinct specimens of the whole animal. It is similar to 

 P. callitris in some respects, but is much more elongated, and the 

 eyes are quite difiierent. 



Head pentagonal ; breadth only a little more than the length 

 (1.9 to 2.5). Glabella elongated, acutely domed in front, occupying 

 about half the breadth of the head, very slightly broader in front 

 than at the base ; sides irregular, separated from the cheeks by a 

 furrow which is very strongly marked at the base. Glabellar fur- 

 rows well marked ; first pair shallow and diverging forwards ; 

 second pair nearly perpendicular to the axis, not reaching the 

 marginal furrow ; third pair perpendicular to the axis in the cen- 

 tre, then directed forwards and merging into the mai-ginal furrow. 

 Occipital furrow, sharply indented, straight, but turning forwards 

 at the genal angles, with deep pits at the axial furrow, and be- 

 comes broader but still deep over the axis. Neck ring forms a 

 broad band over the axis narrower on the cheeks, but broadening 

 out towards the margins. Cheeks moderately curved, almost vertical 

 below and in front of the eyes, bearing outwardly turned mar- 

 gins. Eyes very large and deep, lunate ; facets borne on plates 

 sloping inwards and upwards ; about two-thirds of the visual 

 surface directed forwards and about one-third backwards ; upper 

 margin with a raised rim above the palpebral lobe. A furrow 

 proceeds from the front part of the eye continuing the marginal 

 furrow, and indents the swollen end of the glabella. Sutures lost, 

 except the front one, which runs round the front of the head. 



