94 Dr. C. Heller. 



GENUS PALINURUS. FABRICIUS. 



Dirisio specierum hnc asqne cognitamni. 



I. Carapax rostratus. Annu/us antennalis supra angustissimufi, curvatus. Antennac 

 externae basifere contiguae., antennae internae obtectae., flagellis hrevihus. (Lan- 

 goustes ordinaires M. Edwards. — Subgenus Palinuriis G r a y). 



A. Bostrum dilatatum.,bipartitnm, cornibus planis,margine anteriore spinidosis 



1. Palinaras trigonas Behaan. 



B. Bostrum Simplex, acutum, spiniforme: 



a) Pedes antici insequentihus longiores 



2. Palinaras loD^imanas M. Kilwards. 



b) Pedes antici inscquentibus breviores aut aequale-s. 

 a. Abdomen transverse sulcatum. 



fj} Cornua lateralia frontis supra inerm.ia, infra denticidata 



3. PalinnrDs valgaris Latreille. 



ä' Cornua lateralia frontis supra et infra inermia. 



Carapax et ahdomen ubiqne tuber culis applanatis squammi- 

 formihus obtecta 



4. Palinarns Lalandii Lamarck. 



Carapax ubique et abdomen medio tuberculis acutis armata, 

 margo anticus et posticus abdominis laeris 



5. Palinnrns frontalis M. Edwards. 



ß. Abdomen transverse non sulcatum 



6. PalinurD8 Hägelii Ili'IIer. 



IL Carapax non rostratus. Annulus antennalis supra latus, subquadratus et hori- 

 zontalis. Antennae externae basi remotae. Antennae internae apertae, flagellis 

 elongatis. (Langoustes longicornes M. Edwards. — Subg. Panulirus Gray). 



A. Abdomen transverse non sulcatum: 



Annulus antennalis supra duobus armatus dentibus. Carapax paulo spinosus 



7. Palinuras fasciatas Fabrioius. 

 Annulus antennalis supra quatuor armatus dentibus. Carapax spinosissimus 



8. Palinaras ornatus Bost. 



Annulus antennalis supra sex armatus dentibus. Carapax spinosus et tuber- 

 culosus 9. Palinnrns snlcatns Lamarck. 



