Taxonomy of Shellfish

8.5.1. Puerulus sewelli

Unit 8 - Taxonomy of lobsters

8.5.1. Puerulus sewelli - Whip lobster

• Carapace angular, with a median and 2 lateral tuberculate longitudinal ridges behind the transverse cervical groove and 3 pairs of ridges in front median postcervical ridge with 8 small teeth frontal horns compressed and sharply pointed, with a single, small, sharp tooth on basal part of anterior margin;
• Surface of carapace covered with scattered granules and larger tubercles or teeth on the ridges.
• Antennules slightly over reaching antennal peduncle, with 2 short flagella, which are about as long as distal segment of antennular peduncle;
• Antennular plate present, without spines, forming stridulating organs with the antennal peduncle;
• Basal part of antennal peduncle with a large, rounded, ciliated lobe on inner margin.
  
• Tail powerful, segments 1 to 5 with a low, 6th segment with 2 submedian tuberculate ridges.
  
• Surface of abdominal segments with some sculpturation and with at most 2 transverse grooves;
• Pleura ending in 1 or 2 sharp teeth. Legs 1 to 4 without pincers.