139 



Islands, north of New Guinea and on the south coast of Japan (Kagoshlma, Sagami Bay). Still 

 two other species are found in the Indian Archipelago, viz. Parap. serratifrons Borr., numerous 

 specimens of which were obtained by the "Siboga" in Lobetobi Strait and on the north coast 

 of Sumbawa and Parap. Znr Strasseni Balss already mentioned, which was captured at four 

 Stations in the northern part of the Banda Sea; the former, with which Parap. tcnuipcs Borr. 

 is no doubt identical and which represents the mediterranean Parap. pristis (Risso) in the 

 Indopacific, was first brought by Ur. Willey from Blanche Bay, New Britain and (as Parap. 

 tennipes) from the D'Hntrecasteaux Group, British New Guinea. 



The species of this genus are found at rather moderate depths, except Parap. Adcn- 

 sameri, that was dredged in the Red Sea at 715, though also at 440 fathoms and perhaps 

 also Parap. Ziir Strasseni Balss. The vertical range of Parap. pristis (Risso) is still little 

 known, but, according to Dr. B.\lss, it occurs in the Gulf of Naples in shallow water between 

 the surface and i 10 fathoms; the other mediterranean species, Parap. Narwal, was obtained 

 by the "Travailleur" at 87, but by the "Pola" K.xpedition north of Tripolis at 371 fathoms. 



Key to the known species of the genus Parapandalus Borr. 



rtj Upper margin of rostrum bearing only 6 teeth proximally, beyond 



which it is smooth and unarmed, rostrum twice as long as carapace Cottci [Pfeffer] (Kotte) 

 (E. Kotte, Beitrage zur Kenntniss der Hautsinnesorgane unci des peiipheren 



Nervensystems der Tiefsee-Uecapoden, in: Zoolog. Jahrb. Abth. f. Anatomic 



und Ontog. Bd. 17, Jena 1903, p. 619 — 658, Taf. 23 — 27 'j.) 



a^_ Upper margin of rostrum armed with two large teeth above the eyes 



and ten very small ones on the distal half, which are separated 



from the two proximal teeth by a smooth interspace. Rostrum 



almost 3-times as long as the carapace. Sixth abdominal somite 



3-times as long as 5''' Ziir Strasseni Balss 



^3 Upper margin of rostrum toothed along its whole length. 



b^ Upper margin of rostrum not finely and evenly serrate with small, 



close-set, imbricate teeth, but the teeth are more or less distant from 



one another, the distances between their apices of unequal length. ^ 



c^ Sixth abdominal somite one and a half as long as high anteriorly. 



Penultimate joint of external maxillipeds distinctly longer than the 



ultimate. The three posterior legs are very long and slender, 



carpi of 5"^ pair as long as the propodi Adensanieri Balss 



(H. Balss, Die Decapoden des Roten Meeres. I. Macruren. Wien 191 5, p. 18, 



fig- '7-) 



c^_ Sixth abdominal somite at least twice as long as high anteriorly. 



(/j Third abdominal tergum armed posteriorly with a small, 



slender spine. 



1) In this paper some characters, measurements and a figure of this species are given by E. KoTTE, who at p. dll says that 

 il should afterwards be described by Professor Pfei-fer : as far as I know, this description has, however, never been published. 



