122 KOYAL SOCIETY OF CANADA 



Fi;;. ô.—ITy(ilit/irs Ifnfhitnn/i, n. sp. —ii, ventral view of a tube partly exfoliated.— 

 Il, dorsal view of a more complete tube.— c, operculum. All iiat. size.— f/, 

 ffroup of tubes. Reduced}. See p. 71). 



Fig. 6.—Min-(>tlisrus brl/im(ir{finatu.<i, Slialcr and Koerste.— «, head-shield.— 6, 

 py^idium. Hotli inaj^. j. .S«M'p. «1. 



PLATE IV. 



(Ncwfonndlaiid — 1. Olenus Kiiuiiu ; '1-1, I'rotoleuus Fuunu ; 8 and 9, 



Paradoxides Fauna). 



Fig. l.—ArenicolitesanfiiiiKifus, Bill. -«, a group of casts of three galleries (after 



Billings). — h, section showing gallery and connected pits. Both nat. size. 



S«'e p. 77. 

 Fig. "l.—Aqraulos (Streniiella) strenun. Bill.— r/, middle piece of head-shield.— 6, 



same from the side. Nat. size. See p. 82. 

 Fig. '.i. — Agraulos (Slrenuelki) robusta, n. mut. Nat. size. See p. 82. 

 Fig. 4. — Ayr(tulos [Sfreiiuella ^) Attleborensis, mut. vigilans, n. mut.— «, middle 



piece of the head-shield. Mag. \.—b, same in profile. — r, type of the species 



after Shaler and Foerste. (Mag. t ?)• See p. «4. 

 Fig. ô.—Micmacca Walcotti, n. sp.— «, middle piece of the head-shield.— b, movable 



cheek. — c, same from inner side.—'?, a pleura. All nat size. — c, pygidium. 



Mag. Î. See p. 85. 

 Fig. 6. — Micmacca anginimgo, n. sp. Middle piece of head-shield. Mag. [. See p. 



86. 

 Y'i^.l.—Avalonia plana, n. sp. Middle piece of the head-shield. Mag. f. Seep. 



87. 

 Fig. H.—Conororyphe {Atops) trilineafus, Emmons. Head-shield and eight seg- 

 ments of the thorax. Nat. size. See p. 93. 

 Fig. 9. — Cunocori/phe (Eritinys) breviceps, Ang. Head-shield and six joints of the 



thorax. Mag. f. See p. 97. 



Plate V. 



(Ktcheminian Pauna). 



Fig. l.—OboleUa cf. rhrovinfictt. Bill. Ventral valve. Mag. ?. See p. 97. 



Fig. 2. — Kntorgina g rajinlata.— a, ventra.] vii\ve.—b, dorsal valve. Both mag. J. — 



c, mould of interior of dorsal.— '^Z, hinge line of ventral. Both mag. Î. 



See p. 98. 

 Fig. '6,— Hand (J mi a AiLforiF. — a, side view of the shell restored from two examples. 



b, the same from above.— c, an example showing the back of the cone. All 



nat. size. S«-e p. lOO. 

 Fig. 4. — Pld/j/reras tmnsversuiu. — a, seen from the side.— Z<, seen from above. 



Both mag. ^. See p. lOl. 

 Fig. 5. — Plati/crras radiafutii.—a, seen from the side. — b, seen from above. Mag. \. 



See p. 102. 

 Fig. t^. — Plat yce ran cy^ibiiln, — a, seen from the side. — h, seen from above. Mag. f. 



See p. 1 02. 

 Fig. 7. — Modiolopsis fhrcoldes.—a, right v.ilve.— ?>, section of two valves at the 



hinge.— r, .section near the posterior end. All mag. }. Seep. 10:i. 

 Fig. H.— drot/icca prrvttu.'i. Distal end of tube. Nat. size. Seep. lOO. 

 g. ^.—Ilyulithellus (?) flexuasus. I'roximal and middle parts of the tube. 



Mag. ?. See p. 1 l<>. 



