EXPLANATION OF PLATES. 
NOTE. — Unless otherwise stated, the figures are of the natural 
size, and all measurements in the text are given in 
decimal fractions of the metre. 
PLATE I. 
Fig. 1. Fleur acanthus parvidens, sp. nov. ; imperfect skeleton, left side view, about one- 
seventh nat. size, bpt., pelvic basipterygium ; pet., pectoral fin ; plv., pehic 
fins ; s., impression of dorsal spine ; s.sc., suprascapula ; sc. scapula 
Fig. 2. Ditto ; portion of jaws and branchial arches, right side view, one-half nat. size, 
with (2 a) remains of dentition, twice nat. size. g 1 , g 2 , gill supports ; md., 
hinder portion of mandible ; pt., hinder portion of pterygoquadrate cartilage ; 
/., teeth, nearly all shown in transverse section of the base. 
Fig. 3. Ditto ; tooth, posterior view, four times nat. size. 
Fig. 4. Ditto ; tooth, lower view of base, four times nat. size. 
Fig. 5. Ditto ; tooth-cusp, side view, four times nat. size. 
Fig. 6. Ditto ; vertebral elements of abdominal region, one-half nat. size, ha., haemal 
cartilages of right and left sides, relatively displaced; na., neural arches ; 
r., ribs. 
Fig. 7. Ditto ; portion of pectoral fin, two-thirds nat. size, showing actinotrichia 
overlapping ends of cartilages. 
Fig. 8. Ditto ; base of pectoral fin, two-thirds nat. size, mtp., metapterygium ; pr., 
preaxial rays. 
I’agc. 
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