lOO 



long, the rostrum included, 67 mm. It fully agrees with the cited description and figures. In 

 Fig. 5 of Plate VIII of the "Illustrations'" one observes 4 spines between the frontal margin 

 and the hepatic groove, on Plate IV only 3; the 4''^ spine wanting on Plate IV is that which 

 in the other figure occurs just below a line that unites the .spine at the upper end of the 

 hepatic sulcus with the foremost spine just behind the frontal margin. The male from the Bali 

 Sea carries on the left side 3 spines exactly as on Plate IV, but on the right a 4''^ spine occurs 

 immediately behind the foremost one, a spine of the same size: this 4''^ spine seems to be the 

 same which in ¥ig. 5 of Plate VIII is seen somewhat posterior to the foremost spine, in the 

 same horizontal line, just in front of the hepatic groove. Behind the cervical groove the animal 

 presents, at each side of the median carina, three ridges, like in Ncphr. Thonisoni, Ncphr. 

 Challengcri and Ncphr. Sibogac: it is, of course, an individual abnormality, that the 2"'^ ridge, 

 both on the right and on the left side, does not end anteriorly in a spinule. 



The legs of the i'' pair are equal, log mm. long, and comparatively somewhat shorter 

 with regard to the whole length than in the adult male figured on Plate IV, a difterence probably 

 owinc to the difference ot ao-e. 



Neplir. a)idauianiciis now may easil)- be distinguished from XepJir. TJioiiisoni Sp. Bate, 

 Neplir. Cliallcngcri Balss and the new NcpJir. Sibogae by the more prominent and 

 more conspicuousl)- denticulated ridges on the chelae of the anterior legs 

 and by the more strongly sculptured abdomen. In N^cphr. Thomsoni indeed 

 (H. B.\LSS, Ostasiatische Decapoden II, Munchen 1914, PI. I, Fig. i) the terga of the 2"'' — 5''^ 

 abdominal somites are marked only with a single, though deep, transverse groove, which is 

 broadly interrupted in the middle, while in the two other species the abdomen appears smooth 

 and shining to the naked eye: in Xcplir. CJiallengcri the somites of the pleon are described 

 by Spence Bate as "smooth and free from the transverse depressed line that is conspicuous" in 

 Nephr. ThoDisoni, in Ncphr. Sibogae, finally, one observes (PI. IV, fig. 18) only a transverse row of 

 shallow impressed puncta, also broadly interrupted in the middle. There are, however, still other 

 differences. In Ncphr. Thomsoni tour spinules are observed on the posterior margin of the hepatic 

 groove between the hepatic spine and the spine at the ujjper end of this groove (C. SPE^XE 

 Bate, Report Challenger Macrura, PI. XX\'I, fig. i), in Ncplir. andainanicits, Ncphr. Sibogae 

 and probably also in Neplir. Challengcri these 4 or 5 spinules are wanting at all. The flattened 

 ridge along the posterior margin of the carapace appears in NcpJir. andaiuanicits less broad in 

 the middle than in the three other species. The scaphocerite of the outer antennae has about 

 the same form in three species, being regularly rounded on the inner margin and hardly longer 

 than broad, but in Nephr. Challengcri it appears distinctly longer. In the male of Ncphr. 

 andainatiicjts from the Bali .Sea the antennal scale is 9^^ mm. long and 7^4 mm. broad; in a 

 male of the same size of Ncphr. Sibogae from the Kei-islands the scaphocerite is qYj mm. 

 long and 8 mm. broad. The rostrum of Ncphr. andanianicns appears a little broader 

 between the eyes than in N'cphr. Sibogac and the two sub-dorsal ridges on the gastric region 

 are also a little farther distant from one another than in the new species that was taken 

 near the Kei-islands. The cervical groove is situated a little more forward, so that that 

 part of the carapace which is lying behind the groove, appears a little longer in proportion 



