6i 



The specimen from Stat. 209 is 27 mm. long and resembles the last mentioned, the 

 shallow grooves on the 2 Dd and 3 ld terga of the abdomen are, however, already present. 



The 4 specimens from Stat. 258, all 24 mm. long, agree also with the last mentioned 

 specimens [Panulirus dctnani) and in some of them traces of the transverse grooves are already 

 discernible; the outer antennae are 2 1 / 3 -times as long as the body. 



The male from Goenoeng Sitoli, Nias, is 3 1 mm. long, the ground-colour is a pale 

 brown ; on the carapace the whitish W-shaped figure is visible, like also the whitish transverse 

 band near the posterior margin of the abdominal somites. The interrupted transverse grooves 

 on the 2 nd and 3 rd abdominal somites are discernible. 



The two other specimens from Nias are 22 1 /, mm. and 23 1 /* mm. long. In these three 

 specimens from Nias the anterior pair of spines on the antennular segment are well-developed, 

 those of the posterior pair, however, are in the male, long 31 mm., very short; in the individual, 

 long 2 2 1 /;, mm., the spinules of the posterior pair are rudimentary and in the specimen, long 

 2 3 1 /; mm., even wanting at all. Also in some of the very young specimens from the other Stations, 

 that are shorter than 25 mm., the two posterior spines are often rudimentary or wanting. 



General distribution: Panulirus versicolor (Latr.) is at present with certainty 

 known from the following localities : Mauritius (Gruvel, as Panul. taeniatus), Mascate (Nobili, 

 Gruvel), Seychelles Bank (Borradaile), Christmas Island (Calman), Java (Heller, Gruvel), 

 Java Sea (de Max), Larentuka (Thallwitz), Banda Sea (de Man), Aru Islands (de Man), Ternate 

 (de Man), North Celebes (Thallwitz), New Holland (Lamarck), New Britannia (Pfeffer), Matupi 

 (Pfeffer), Mortlock (Pfeffer), Fiji Islands (Pfeffer), Samoa Islands (Pfeffer), Japan (de Haan, 

 as Pal. fasciahis). 



The "Natant"-stage of Panulirus versicolor (Latr.), puerulus spiniger Ortm. (PI. II, 

 Fig. S— S*). 



Pner spiniger A. E. Ortmann, in: Jehaische Denkschriften, VIII, 1894, p. 19, Taf. II, 



Fig. 2 and 2/. 

 Confer: W. T. CaLMAN, The Genus Puerulus Ortmann and the Post-larval Development of 



the Spiny Lobsters (Palinuridae), in: Annals Mag. Nat. Hist. Ser. 8, Vol. III, 1909. 

 BOUVIER, E. L., Le Stade "Natant" ou "puerulus" des Palinuridés, in: "The Transactions 



of the Second Entomolog. Congress, 1912. 



Stat. 86. June 18/19. Anchorage off Dongala, Palos-bay, Celebes. 36 m. Fine, grey mud 



(river mud). 1 specimen. 

 Stat. 181. Sept. 5/11. Amboina. Reef. 9 specimens. 

 Stat. 234. Nov. 19/20. Nalahia-bay, Nusa-Laut-Island. 46 m. Bottom stony. 2 specimens, 



collected together with 2 young specimens of Panulirus versicolor (Latr.). 

 Stat. 250. Dec. 67. Kur-Island. Reef. 1 specimen. 



Though this form is considered by Dr. Calman and, as I think, rightly, to be the 

 "Natant-stage" of Panulirus versicolor (Latr.), the following remarks will probably be welcome. 



The specimens are nearly all of the same size, the largest are 24 mm. long, measured 

 in the middle line from the anterior margin of the carapace to the end of the telson. In the 

 largest individuals the carapace is 9 mm. long, the abdomen 15 mm.; both are smooth, though 



