Alcock, 1898
The abdomen of the male is divided into 6 (segments 5 and 6 fused together) or 7 segments. In males, the length of the second pleopod never exceeds that of the first; usually the second pleopod is very short but can sometimes extend beyond half of the length of the first. The abdomen is elongated and narrow, covering most of sternite 4 and with a locking mechanism; the genital openings are coxal or coxo-sternal. The front is prominent, nearly straight or bilobed; the carapace is pentagonal. The abdomen of the male has a very elongate telson, its length being more that twice that of the greatest length of the other abdominal segments. There are no endostomial crests. (Serène, 1984)
Species treated:
genus Halimede de Haan, 1835
genus Parapanope de Man, 1895