■■-^ -I^UH 



rONTOFlIlLUS OCCIDENTALIS. 



Y 



t 



'" 



131 



of carapacC; including rostrum, 30mm.; length of rostrum, 12 mm.; length 

 of telson, 16 mm. 



Station 3424. 676 fathoms. 2 males, 3 fem. (1 ovig.). 



a 



3425. 680 



a 



1 iiiiile. 



The males (all of whieli are much smaller than the females) differ from 

 the other sex in having the various spines longer, the abdominal pleuras 

 narrower and prod need to longer spinous points. 



The egg measures 1.5 X 1.3 mm. 



The number and arrangement of the gills are the same as in the t3'pe 

 species of the genus, P. ccMnaia Dana, as shown by the following formula : 



Somites, 

 Pleurobrancliise, 

 ArUirobraucliise, 



VII. viir. IX. 







rodobrauoliiae, 

 Epipods, 





 1 





 

 



1 





 

 

 



X. 



1 





 

 



XI. XII. XIII. XIV. 



1 





 

 



1 















1 





 

 



1 





 

 



5 

 

 



(2) 



5 + (2) 





Faracrangon hystrix A. M. Edw.* is not a Paracrangon. The second pair of 

 legs (which are non-chelate) are not completely suppressed, and there are 

 two arthrobranchia) on each side of the ninth (third maxillipedal) somite. 

 Although differing much in aspect from the typical species of SaUiica, it 

 agrees in the essential structural features, and is correctly referred to that 

 genus by Professor S. I. Smith. It is identical with the species afterward 

 described by Smith under the name of SaUnea princepsA 



Paracrangon eclmata Dana, the only other species of Paracrangon known, 

 has been found at Vancouver's Island, Puget's Sound, California, and Japan. 



PONTOPHILUS Leach. 



Malaooslr. rodopliUml. Brit., Tlato XXXVII. A., 1816 (?). 



Pontophilus Occident alis Fax. 



r 



Plate D., Fig. 2-2'^. 



\ 



Bull. Mns. Coinp. Zoo1., XXIV. 200, 1893. 



Closely allied to P. ahfjssi Smith, and P. hatei Fax.:}: From the former it 

 differs in having a shorter rostrum, larger eyes, and more strongly developed 



* Ann. ScL Nat, Zool., 6«""= S(;r., Vol XL, No. 4 p. 6, 1881. 

 t Bull. Mas. Comp. Zool, X. 38, 1882. 



% Poniophilus hatei Fax., Bull. Mus. Comp. Zool., XXIV. 200, 1893, = Pontophilus gracilis Bate 

 (nam. pru'oc). Ortmann (Uocapodcii u. Schizopoden dcr Plankton-Expedition, p. 49, 1893) also has pro- 



