V ERMES. 
44 5 
Cum operculo defthuatur orificiurn loco, cui affi- 
gitur, npplicat materiam glutinofam protrufam 
nd orificiurn, qua mediante loco , cuiplacet, 
adhseret 6c orificiurn cadem materia operculi lo- 
co tegit. 
134. CONCHA (grteca) ovato-cordata angulis reflexis 
transverjalibus. 
Animal bilabiatum. Ccrpus primarium cartila- 
gineum, cuneiforme, bafi crafiius, apice com- 
prefium , lineare, duriufculum. Anguli ad la- 
tera utrinque apicis , unus utrinque j quorum al- 
ter major, fubacuminatus •> alter multo minor, 
obtufiufculus. 
Labia membranacea, tenuia, margine cartilaginea, 
integra. 
Corpus cartilaginofum breve, craffiufculum, latere 
verfus bafin labia pr.oferens. 
Testa bivalvis, rotundato- cordaca, convexa , 
valvulae a latere juxta bafin minimo fpatio clau- 
fie f. ferratse, transvcrfaliter angulato-fulcatae. 
Anguli elevati, margine omnes verfus bafin re- 
flexi $ horum extimus qui marginem cingit reli- 
quis craffior, interiore iuperficie levifiime erena- 
tus *, reliqui ordine usque ad centrum f. bafin 
deerefeentes; omnes verfus extremi tatem utram- 
que profunde, fpatio vero intermedio leviter ii- 
nuati 6c in fegmenta parva, obtufa divifi. 
Sims ovato-lanceolatus, longitudinalter levifiime 
flriatus ab una parte bafeos confpicitur 5 ab alte- 
ra vero oblongus, glaber, maeulatus. Sulct C 
finus inter angulos poftice vifibiles, fub margine 
anguiorum dccurrentes; horum fupremus latior 
reliquis, duos angulos tenuiores continens j re- 
liqui ordine deerefeentes. 
CpLoa: Candtdum elt animal. Tefi<e anguiorum 
D d y fi- 
