396 
SUrPLEMENT. 
NOTES AND EMENDATIONS. 
The recent publication of a valuable Monograph of the Devonian 
Fauna of the South of England^ (Pal. Soc. 1890 — vol. for 1889) by 
the Eev. G. F. Whidborne throws new light upon many of the 
species of Cephalopoda from that region, new and better specimens 
than Phillips had at his disposal having been available for the work. 
Having had the opportunity, kindly afforded me by Mr. 'Whidborne, 
of examining several of the specimens from his collection, I am 
enabled to make a few corrections in the identification of one of 
the species described in the earlier part of the present volume. In 
the synonymy of Gyroceras Eif dense, d'Arch. & de Yern., sp. 
p. 59), I have included, though doubtfully, the Cyrtoceras naiiti- 
loideum of Phillips. On a re-examination of Phillips’s specimen, 
in company with Mr. 'Whidborne, I have come to the conclusion, 
with him, that the last-named species is most probably identical 
with C. \_Gyroceras~\ armatum, Phillips". (See Mr. AVhidborne’s 
memoir, p. 99.) The C. nautiloideum of Phillips is described by 
Mr. 'Whidborne as a “ very much worn cast.” . . . . “ only dis- 
tinguishable from the other shells by the general (not entire) absence 
of nodes, and by its more regular section. These differences,” con- 
tinues Mr. \Yhidborne, “ may, however, be fully accounted for by the 
great amount of surface-decay which it has undergone, if not also by 
such specific variation as we have already observed in G. ^rcEciarum 
['Y’hidborne, = C. ornatum, Phil., not Goldfuss].” 
The following new species of Nautiloidea are described by 
Mr. Whidborne ^: — Temnoclieilus inornatus { = Hercoceras inor- 
natum, Whidb. Geol. Mag. dec. iii. vol. vi. p. 29), Troclioceras 
Foordianum, Troclioceras Vicarii {= Cyrtoceras Vicarii, Whidb. 
Geol. Mag. dec. iii. vol. vi. p. 29), Troclioceras 'pulcherrimum 
(^=Cyrtoceras pulcherrimum, Whidb. Geol. Mag. dec. iii. vol. vi. 
p. 29), Gyroceras pra'darum { = Cyi'toceras ornatum, Phil., not 
Goldfuss, and Cyrtoceras prceclarum, Whidb. Geol. Mag. dec. iii. 
vol. vi. p. 29), Gyroceras asymmetricum, Gyroceras Crichii, Gyro- 
ceras Leei (= Cyrtoceras Leei; Whidb. Geol. Mag. dec. iii. vol. vi. 
^ Part ii., “ The Fauna of the Limestones of Lummaton, Wolborough, Chir- 
combe Bridge, and Cbudleigh,” pp. 47-154, pis. v.-viii., viii.A, ix.-xv. 
^ Figures and Descriptions of the Palaeozoic Fossils of Cornwall, Devon, and 
West Somerset, 1841, p. 118, pi. xlviii. ff". 225, a-c, 
® I have placed them in the order in which they occur in his memoir. 
