HELIX.
Testa cochleata, lævis. Apertura subrotunda segmento circuli exempto.
Except scarabæus and amarula, the members of this genus were located in the same group as in the published edition.
H. scarabæus. Morion ovatus subanceps, labio utroque tridentato.
The "ovata, adeo" has replaced the earlier "ita", and "angulata" the original "articulata". The account of the aperture was not inserted in the manuscript, wherein "List. Hist. 577. f. 31" and "Klein 11. t. 1. f. 23", had been inserted in the Linnean handwriting.
H. lapicida. H. marginata perforata convexa carinata.
"Cincta" was a press emendation. The only written synonym was "Faun. Suec. 1298".
H. oculus-capri. H. marginata perforata subcarinata.
"Pet Gaz. t. 76. f. 6." was indicated as a synonym. The name was Latinized from the "l'œil de bouc" of d'Argenville who has, however, represented an utterly different shell.
H. carocolla. H. submarginata imperforata carinata, labio interiore recto.
D'Argenville's figure was, evidently, not at first considered sufficiently illustrative to be referred to: it was not cited in the written copy. "Conicoplaniuscula" was the reading for "convexa", "segmento circuli" (the 1/4 without any sequence was absurd) for "semiovata": the size, as usual, was not given.
H. cornu-militare. H. marginata imperforata subcarinata, labio interiore explanato.
The deceptive figure of Gualtieri was not at first cited.
H. cornea. H. marginata convexa umbilicata, spira plana.
"Faun. Suec. 1304" was in place of the reference to 'Lister's English Conchology,' a work apparently unknown to our author when he first drew up the Museum Catalogue. I doubt the identity of this shell (the intended name for which was tabellaris) with the cornea of the 'Systema.'
H. cornu-arietis. H. utrinque depressa.
"List. Hist. t. 136. f. 40" was written by our author in the manuscript copy.
H. ampullacea. H. subrotunda, sursum ventricosior glabra.
The original reading of "anfractus superne ventricosi" was "abdomen superne ventricosius". The erroneous reference to Gaultieri was not at first attached to the description. The species of the Museum was evidently distinct from that of the 'Systema.'
H. glauca. H. subrotunda acuminata, labro postice marginato.
H. citrina. H. umbilicata convexa obtusa.
The final remark was an afterthought.
H. arbustorum. H. marginata perforata convexo-acuminata, ore suborbiculari, margine duplici, antice elongato.
"Faun. Suec. 1295" was the only synonym; the work of Lister on English Conchology not having been at first known to Linnæus.
H. ungulina. H. marginata perforata spiralis convexa, ore suborbiculato.
The "Gualt." was a misprint for the written "Rumph."
H. lutaria. H. ovata-oblonga umbilicata, interne coloratiore.
"Habitat frequens in lutosis fluviis, lacubus." May not the Valvata piscinalis be the shell intended?
H. perversa. H. ovato-oblonga subperforata glabra.
"Pet. Gaz. t. 44. f. 7", and "Grew. Mus. t. 10. f. 9" cited in the 'Systema', were also referred to in the MS. "Alba", and "in quibusdam", were interpolations in the Linnean handwriting: H. sulphurata was the intended designation.
H. ianthina. H. subrotunda obtusa patula diaphana.
The entire account of this beautiful shell was written by Linnæus subsequently to the labours of his amanuensis: the twelve last printed words were not present. The cited figure of Gualtieri was not admitted, as a representation, but only alluded to in the final remark of "Confer Gualt. t. 64. f. O." "List. Hist. t. 572. f. 23", and "Sloan. Jam. 2. p. 239. t. 1. f. 4" were indicated as delineations.
H. nemoralis. H.
"Habitat ubique in Europæ nemoribus", and "Argen. t. 32. f. 8", were the unprinted additions. Lister's English Conchology was not, of course, mentioned. "Flavescens" and "nigro-purpurascens", were not in the original.
H. hæmastoma. H. imperforata subrotunda fusca fascia longitudinali subrecta alba, ore purpureo.
H. decollata. H. elongata lævis truncato-mutilata.
"Pet. Gaz. t. 66. f. 1", and "Habitat in Arabia. Hasselquist. Santa Cruz. Petiv." were the unprinted additions. The entire account was in the handwriting of our author.
H. amarula. Nerita edentula oblonga, anfractibus multifariam denticulatis.
Our author was evidently puzzled as to the generic position of this peculiar-looking shell, for he has written "Habitu accedit ad Volutas vespertiliones, ore Helicibus, sed labium interius planum, et affinitas cum antecedenti fiat, ut hic relinquatur." The preceding shell alluded to was N. corona.
H. Neritoidea. H. convexa longitudinaliter striata.
The erroneous reference to Gualtieri was not present in the written copy.
H. perspicua. H. convexo-ovata, labio interiore nullo, apertura ad apicem usque pervia.
The then unpublished details of both this and the preceding were referred to in the tenth edition of the 'Systema.' Patens was the proposed specific appellation.
H. haliotoidea. H. depresso-planiuscula obtusissima, ore ovali dilatato.
None of the cited figures were at first accepted by our author, who only added that of Rumphius to the earlier description, and wholly omitted the rest. "Transverse" preceded "striata".