DavidRoyHunter.pdf

IZ5yml1etricalm"ltlco5tatedrepanodiFormlO,
47asy....etricalbicostate
drep..llodlfonos'. ~2 weakly b1coHtaCII uy_trical dre:pal'lodlfOrllls. 34
oisrodHonls).
I}IlEPA1.QOUSsp.
D. ARCUATU!> Pander, 1856
1'1,.. 3, f1g$. 1..-7; 1'1. 13, H~s. 11-13; Fig. 25A-1I
~. Only .. few speeilrlens, "h1ch possibly npresent aderlvatt"..
of D.
arcuatus, ""r" recovered from the Cobbs Arm forMti"n. Thh
"pecies8Ppearitocontaincostateandnon-costar;edrepanodifo....5. 5y"'-
_trical costate dn,panodHorlflS have on" costa on each laural face where-
"
as asylml'1!Uic"l c(lstate drepanodHorms have a singh costa on the outer
\ i
\
PROTOPANDERODUS
face only. The re..a.in1ng drepanudl forms, and th" ol~todlfol'1011, are non-
MaterL.l. 41 spcc1"",,n~ ( 11 sYlIlI:Ietrlcal bicostate drepanodifor;lls.
13 un leo' tate drepanodifor.ns, 13 non-costate drepanodifonts,
ifonos).
Genus PROTOP,\NDERODUS Lindstrom. \')70
~.AcontiOd\JsrectusLind!ltroQl.1955
PESELEP\tAIH1S (Lindstro"" 1955)
PI. 3, fi~s. 8-"11; 1'1. 13, (ig. 17; Fig. 2f>G--J
LlNOSTll.()K 195511. p •. 595, 1'1. 2, figs. 19.20. Fig. 3