116 
CRUSTACE A. 
lineares, incurvatae in Calappideis, Matutoideis, Dorippideis, Leucosideis. Palpi basi 
dilatati yersus apicem sensim angustiores in Raninis , vel ultra medium repentim 
reflexi , lineares aut basi tetragoni in Calappideis, Dorippideis, aut basi rotundati 
in Matutis aut ovati in Lyreido et Hepato; minimi , aliquando plane desiderati in 
Orithyia , Leucosideis. — Mandibularum corona aut yalde dilatata , apice inferiore 
incuryata, yel sinistra medio uncinata in Raninoideis yel utraque medio uncinata in 
Matutoideis; aut minus dilatata, utraque corona medio uncinata in Dorippideis, yel 
dextra tantum in Calappideis et Leucosideis, Palpi triarticulati, articule ultime com- 
presse. — Palatum in oris cayitate supra mandibulas productum et oesophagum cir- 
cumdans, sinu terminatum yel arcuato in Raninoideis, Leucosideis, Mursiis et Orithyis 
yel trigono in Dorippis, Calappis, Cycloibus, Matutis. — Labium superius yel corneum 
et immobile aut antrorsum in cristam producitur, usque ad apicem canalis oris in 
Calappis ; aut breyem acutam cristam format in Raninis ; aut angustum , apice ob- 
tusum, sutura media fissum in Matutis; yel corneum mobile cristatum in Dorippis; 
yel membranaceum et acutum in Leucosiis. — Lingua proprie dicta inllata inter 
mandibulas. — Labii inferioris pars media membranacea perangusta in Raninis, aut 
trigona in Calappis, aut non distincta in Leucosiis, Matutis et Dorippis, Alae laté- 
rales aut basi contiguae, apice rotundatae in Raninis, Calappis, Matutis et Dorippis 
aut basi distantes in Leucosiis. 
Ventriculus Oxystomatum offert regionem cardiacam lato-trigonam. Pars membra- 
nacea ante cartilaginem cardiacum perelongata, sensim angustior, cartilagine urocar- 
diaco ter longior in Ilia fugace; transyersim e contra dilatata, saccis lateralibus yel 
inflatis in Raninis, yel breyibus in Matutis; latere anteriore conyexa inflata in Calappis 
et Dorippis. Cartilagines cardiaci a pterocardiacis soluti in Raninis, lliis, Dorippis; 
non soluti in Calappis et Matutis. Cartilagines cardiaci latérales superiores yalde infiexi, 
Urocardiacus antrorsum dilatatus in Raninis, Calappis; parallelus in Matutis, Dorippis 
et Leucosiis. Cardiacus posterior yel angusto-trigonus per totam longitudinem carinatus; 
yel dilatato-trigonus, usque medium carinatus, yersus oesophagum apice excisus et in 
spinas duas breyes terminatus. Cardiaci latérales medii ejusdem longitudinis ac prae- 
cedens, transyersim trigoni, yersus oesophagum angustiores in Raninis, Calappis; yel 
suhquadrati in Dorippis; yel lato-trigoni , yersus partem superiorem acuti in lliis. 
Cardiaci latérales anteriores, sutura membranacea a mediis separati yel oyati ejusdem 
longitudinis ac medii in Calappis; yel medio latiores, utrimque angustiores in Dorippis; 
vel trigoni, spatio membranaceo a mediis separati et apice superiore tantum cum 
hisce cohaerentes in Matutis; yel minuti in facie inferiore saccorum lateralium in Rani- 
nis, a mediis longe distantes; yel plane desiderati in lliis. Rentes internae cartilagirmm 
cardiacorum superiorum concayi, trituberculati yel laeyes in Raninis et Dorippis, yel 
costulati in Calappis, yel sérié spinarum margine inferiore terminati et margine supe- 
riore toto spinuloso in Matutis et lliis. Infra dentes spina singula acuminata recta in 
Raninis; yel tuberculum obtusum in Dorippis; yel tuberculum quadrispinosum, spinis 
recuryatis inaequalibus in Calappis; yel tuberculum arcuatum integrum in Matutis yel 
nullum in Leucosiis. Dens cartilaginis urocardiaci arcuata in Raninis et Calappis; 
truncata, obtusa in Matutis; bituberculata in lliis, trituberculata in Matutis. 
Thorax yalde dilatatus, cycloideus yel oyatus; lateribus spina armatis in Matutis 
et Mursiis, yel in cylindrum productis in Ixis; spinis pluribus dorsalibus elongatis sim-t 
