Vid Proceedings of the Royal Physiwal Soevety, 
CO. Campbetttownensis; to the latter T attached the name of 
O, Whiteavesi, 
Mr Smith Woodward, having had subsequently the privilege 
of inapeoting the original type of Cy Campbelléownensis, found 
that it actually possessed the pointed rostrum characteristic 
of my CL Whiteaeest, which rostrum had been omitted in the 
drawing published by Mr Whiteavos.! Consequently my 
apooios had to go, though it was cloar that there was 
vomething still to be determined regarding the species of 
Cephalaspis ooourring at Campbelltown, 
Tho myatory is quite cleared up by the specimens in the 
prosont collection; there are two species, bub the new one 
is that with the rounded snout, which T shall desoribe under 
the name of 
Cophalaspis Jexi, sp. nov, ‘ 
Cephalic shield rounded in front, cornua ineurved, com. 
paratively short and stout; the orbits relatively smaller 
than in CL Campodel/ownensis, situated nearly midway 
between the anterior and posterior extremities of the 
shield, The external ornament of the shield consists of 
minute closely-set tuberclos, often tending to be ranged 
in Concentric lines, which are parallel to the borders of 
the tesserae, On the cornua the tubercles are not so 
olose, showing intervals which are finely longitudinally 
striated, ‘Tho inner margins of the cornua are distinotly 
dontioulated, 
In ©. Campoded/fownensis, on the other hand, the front of 
the shield is produced into a pointed rostrum, the cornua 
are relatively longer, the orbits relatively larger than in the 
preceding species, The ornamentation of the cornua and the 
dentioulation of their inner margins is anore delicate, the 
former consisting of minute pits and roticulating furrows, 
the interspaces between which appear as minute flattened 
tubercles, . 
Both of these spegies seem to be common at Campbell- 
town, but perfeet’ shields of CL Jew! are rare, boing mostly 
YASS, Woodward, Cat, Poss, Fishes Brit, Mus, pt. ti, p. 19d, 
