*. 



No. 4.] 



lULLINOS — F(>S.>iILS OF NFAVFOrNDLAND. 



i 1 



somewhat diilcrciit. The posterior pair seoiii to be eiuircly rli>- 

 connoctcd in tlio miildlo and the next two pair.-^ are rather inoM- 

 curved. The marginal rini of the front of the head, seems to he 

 close uj) to, and in contaet with, the front of tlse L'labella. Thr 

 surface is ornamented with miiuitely cnrruLcatcd. raided line- 

 which, in some places, anastomo.se so as to present ;in irreuu 

 larly reticulated ajipear.anee. This at onei- srp.arates the specie- 

 from J', tiiirlhis. the surl'ace oi' which is minutely 'jranulatcil. 

 The surface nl'^1. reimstus '•■ somewhat like that of this species. 

 hr.t the rai.^ed lines are more distant, and besides the posterior 

 tilabellar furrow extends all across. The lentrth of the most 

 perfect glabella examined is about thirteen line-. (Inlytiirce 

 Iragmeuts, (all of tin- .'.dabella) of this species occur in the col- 

 lection. Kortu of the eyes and of all other ji.irf- unknown. 

 It oceur(> at ('hap«l Arm, Trinity B,iy 



(ienus I I'llirtFC.A. treu nov. 



Fig. ];{. Ijiliiilea hello : ventral' aspect. 



Of this genus we have no s|ieeimens .-^howiui: the internal 

 but the external characters seem sufhcieiit tn '^cpar.ite 



structure 

 it from i 



my described generic group. The ventral '.'' vahe uf 

 /. 6«7/f», is conical, strongly elevated at the beak, hinne-line nearly 

 straight, jtostei ior angles narrowly rounded, sides ;ind front nearly 

 unil'orndy rounded, forming rather more than a semi circle. 



Posterior side with a large i\\\so area, ;ind a c 



diuin, tlie width of which at the hinge line i> i 



the whole width ol' the slidl. Tlu' dor.^-al valve i< .■.en 



on\('\ pseudn-ilelll 



learlv line t liird 



il-cM'ciil:ii', 



mo(. 



Jcrately convex most elev.ated ut the Ijcak The liin'je-lin 



appears to he straight. The form and structure of the po-tcrinr 

 side, (such as the area, foramen, deliidium. \c.. i eiinni.t be ni.ide 

 out I'rom the s]K'cimen, owircj to its iniperl'ectinn Tiie Mirf;iee 

 is covered with fine concentric stria*, which in the vcnti'.il '.'' \,d\e 

 are continued around on the area. Of the.»e striiu there ajipear 

 to be from 1;") to :it( in the width of one line, their size varying 

 somewliat in difl'crent parts of tlie sjiecimeti. There are also a 

 lew obscure radiating stria*. Width of ventral valve. 7 lines ; 

 leugth, 5 lines; hcieht, 2 lines. 



