NOTES AND OBSERVATIONS. v 
Tab. No. 
colour, in some prettily veined a little purplish: the edges on their inside are 
quite round about to the very hinges finely indented, or rather hatched. 
324. l6l. Concha echinata Gesneri. 
327. 164. Ab Africano litore ad fluvium Congo. 
331. 168. Concha striata longa Rondeletii. 
336. 172. The small ones of this kind are very beautiful; yellowish, with dark brown spots 
running in an undulated manner from side to side. There are shells also of this 
kind very much bigger than that which is represented; yet all are rare. 
349. I87. Concha imbricata minima Aldrovandi. 
351. I89. Tridachnes Aldrovandi. 
354. 191. Inter concharum genera omnia, quae nobis videre contigit hucusque, et alii re- 
centiores descripserunt, nullam conspeximus majorem hac a nobis nunc de¬ 
picta : quare Maxima cognomen meruit, et ob testae crassitiem, gravitatem at¬ 
que duritiem, Marmoream denominavimus. Illustri nota ab aliis secernitur, 
quia septenis tantum a cervice ad os ductis distinguitur magnis striis, totidem- 
que strigibus inter se magnitudine paribus, alternatim ad invicem oppositis, 
cum occluditur testa. Figura conchae oblonga, per obliquum cervicis, ab uno 
latere longiore. Clavicula magna cervici adest elata, atque altera exigua ad¬ 
modum circa extremum conchae, parte breviore, canaliculis illis subjacentibus, 
quibus alterius conchae, vel testae pars claviculae respondentes connectuntur. 
Contraria vero majoris claviculae parte septem conspiciuntur incisurae scalarum 
ritu decrescentes, quae pars circa cervicem se dilatans reclinat; atque auris 
modo quae pectini est, non exerta, sed infra conchae crassitudinem producitur. 
Linea locus, quem animal occupat conchae internus, ac magis pallens definiri 
videtur; colore deinceps per ambitum circa ora candicante, marmoris politi 
modo, splendido. Externa conchae parte striarum additamentis crassis tota 
exaspera redditur, quibus tegularum et imbricum modo, alia super aliis su¬ 
peraddita videntur; quapropter imbricata dici merito potest. Striges vero lineis 
tantum exasperantur densioribus, sinuosis, oblique decurrentibus ab altero ad 
alterum conchae extremum ; magnitudine et sinubus imparibus juxta striarum 
et strigium magnitudinem atque crassitiem; at circa ora quidem sinu et circulo 
pollicari amplitudine undosae conspiciuntur, circa cervicem vero minimae ad¬ 
modum. Ab ea parte, duas uncias crassitie superat Concha, circa ora in tenui¬ 
tatem abiit. 
356. 193. The muscle, in the first place, is large for the kind; the strias are big, rising, and 
a little undulated, and towards the broad end of the shell are double, or branched. 
This is purplish, at least in places on the outside, the rest white and Mother of 
Pearl colour. 
356. 195. This muscle is smooth, and some of them are twice as big as it is figured; the co¬ 
lour of the outside in some is reddisb, and white within: but these I judge are de- 
cayed, and these are mostly pretty strong and thick; but those of a freshness 
are on the outside of a brown hair colour, and of a purplish red 'within. These 
come from Jamaica. 
358. 196- There is another elegant, striate, large purplish muscle, which came from Carolina 
in the West Indies. This is not near so deep and concave as the other, but 
the strias in this are three for one in the former: these strias also are bifid to¬ 
wards the broad end ; the inside shines with a most beautiful pearl colour. 
370. 210. The first in the piate is a thin transparent shell of the colour of horn, with here 
and there small prickles; it is blunt at the broad end: I take it to be a very 
young fish. 
370. 2d. This shell also is very thin and transparent, very blunt at the broad end ; yel¬ 
lowish, distinguished crossways with fine waves, drawn small and thick: the 
shell is sharp ridged at the smaller end, and very straight, with little or no 
sinus. This (371. 212.) is not to be distinguished from the former, but that 
it wants the transverse lines; but hath eminently the undulated waves running 
lengthways. 
373. 214. 1 lns shell is figured as big as the life; the only one of the kind that I have seen: 
it is of a dark liver colour: from the small end and downwards run seven or 
eight rows of high, thick, and hollow pipes, blunt at the end; these concave 
murices are twisted into pipes; where they are not, they are imbricate: the 
b 
