Site pages
Current course
Participants
General
6 February - 12 February
13 February - 19 February
20 February - 26 February
27 February - 5 March
6 March - 12 March
13 March - 19 March
20 March - 26 March
27 March - 2 April
3 April - 9 April
10 April - 16 April
8.5. Genus Puerulus
Unit 8 - Taxonomy of lobsters
8.5. Genus Puerulus
- First pair of legs not enlarged with no trace of a pincer without cross bands.
- Carapace without a scale-like sculpture.
- Tail variously coloured, smooth or with at most 2 transverse grooves.
- Two distinct, widely separated tooth-like frontal horns, between which the anterior margin of the carapace is visible.
- Antennal flagella, although large and firm, quite flexible.
- Flagella of antennules short, shorter than last segment of antennular peduncle.
- Abdominal segments with a sometimes interrupted transverse groove, but without squamiform sculptraution;
- A distinct antennular plate between bases of antennae.
- Frontal horns tapering to as sharp point, first segment of antennular peduncle not over-reaching antennal peduncle.
- Anterior margin of carapace between frontal horns without teeth, only a single small tooth in basal part of anterior margin of each frontal horns;
- Pleura of second to fifth abdominal segments ending in two about equally strong teeth.
Last modified: Wednesday, 24 August 2011, 4:21 AM