Edmondson—Stomatopoda in the Bishop Museum 285 
More thorough and extensive surveys of the reefs and shallow 
waters about the Hawaiian and other islands of tropical and sub- 
tropical seas will, no doubt, greatly increase the number of known 
species of the group and throw added light on the problem of 
distribution. 
One of the interesting disclosures resulting from a study of 
the collection of Squillidae in the Bishop Museum is the fact of 
the occurrence in the Hawaiian waters of Odontodactylus hansenii 
(Pocock), previously reported from the China Sea, and Squilla 
alba Bigelow, known only heretofore as from the Bahamas. More 
complete knowledge of the Stomatopoda will, no doubt, reveal a 
much more extensive distribution of many of the species previously 
believed to be somewhat restricted in their dispersal. The long 
life of the larvae, together with favorable ocean currents, may 
possibly explain the presence of the same species in widely sepa- 
rated regions, especially in the same ocean. It is only reasonable, 
however, to believe that more complete surveys would reveal the 
species in intervening localities and thereby shorten the links of 
the distributional chain. 
Attention is here called to the structural difference between 
the male accessory organ of Lysiosquilla maculata (Fabricius) in 
specimens from Tahiti as compared with that in the specimens from 
Hawaii. A large number of Hawaiian specimens, however, should 
be examined before conclusions regarding a fixed local variety 
can be drawn with certainty. 
