4 Gr. O. SABS. PEELIMINABY NOTIOES 03S r THE SCHIZOPODA. 



rostrum, the side-edges prominent and somewhat deflexed. Postab- 

 dominal segments, short, and narrow, with small epimera; the last 

 not divided transversally. Antenna] scale of very peculiar shape, 

 forming a narrow, flexuous, plate, of very firm structure. hut with- 

 out any setæ. Last pair of legs wanting the expodites, or natatory 

 branches. Telson with a deep apical incision. Uropods very small, 

 the lamellæ short. lauceolate, and setose on both margins. 



Remarks. This new genus is at once distingiushed from Lopho- 

 gaster. by the very remarkable form of the antenna! scale, the strong 

 development of the carapax. and by the structure of the last pair 

 of legs. and of the caudal fan. 



2. C(.raiol<i>h hamata n. sp. 



Carapax slightly nodulose above. rostrum horizontal. reaching 

 the end of the antennular peduncle. the side-edges of the frontal 

 plate shorter than the rostrum. Epimera of the postabdominal seg- 

 ments finely serrate at the posterior margin. Last segment short, 

 with two large lateral spines, and two terminal ones. embracing the 

 base of the telson. Eyes rather small, only slightly expanded at 

 the end. Antenna! scale rather surpassing the antennular peduncle. 

 slightly curved outward. and somewhat dilated at ihe apex. forming 

 here two acute angles, the one directed forward, the other bent 

 posteriorly. in the form of a hook. Telson deeply cleft at the apex. 

 or forming two acuminate. and divergent. apical lobes. Length: 

 12 mm. 



Hal. Pacific Ocean. North of Australia, (Api to Cape York); 

 surface. 1 single specimen, female, with distinct, but small incu- 

 batory lamellæ. 



Gen. 3. Gnathophausia. Willem. Suhm 1879. 



Transactions Linn. Soc. Lond. 2 ser. Vol. 1. 



3. Gnathophausia ingens (Dohrn). 



Lophogaster ingens, Dohrn, Untersnchungen iiber Bau und Entrwiekelung der 

 Arthropoden. Zeitschr. f. wiss. Zool. Bd. XX, 4 Heft, pg. 610, pl. XXXI, fig. 

 12—14. 



