studies oil marino Ostrarods 



221 



a has niiH' 



species), the left maxilla three anterior and lour posterior. In specimen a the end joint has 

 three b-bristles and three or four c-bristles, in specimen b four b-bristles and five or six 

 c-bristles. In other respects the niaxiUa is the same as in the type species. 



Fifth limb: — Protopodite: The first enditc of specimen 

 bristles, of specimen b has (on the fifth limb of one side, the 

 other side is defective in this character) twelve bristles, of about 

 the same type as in the type species, but rather more weakly 

 armed. Third endite: The third to the sixth bristles (on the left fifth 

 limb of specimen b even the third to the seventh), counting from the 

 front, have no long secondary bristles at the middle. Exopodite: 

 First joint: On the anterior side of the joint close to the main tooth 

 there is a row of three (on the right fifth limb of specimen b four) 

 bristles, of a type about the same as that of bristles nos. 1, 2 and 5, 

 counting from the main tooth, in the type species. Second joint: 

 On specimen a this has only four a-bristles and eight b-bristles, 

 on specimen b, as on the type species, five a-bristles and nine b-bristles. 

 The fourth exopodite joint has seven bristles in specimen a, eight in 

 specimen b, arranged in two rows in varying ways, all with short hairs. 

 In other respects this limb agrees with the type species. 



Sixth limb: — Specimen a : Protopodite: The first 

 endite has two distal and two medial bristles. The second endite has 

 three distal bristles and three medial bristles. The third endite has four or 

 five distal and one or no medial bristle. The epipodial appen- 

 dage is represented by four short, bare bristles. Exopodite: 

 The endite of the first joint has nine distal bristles and one medial 

 bristle; the second exopodite joint has 24 bristles. Specimen b: 

 Protopodite: The first endite has two distal and two medial 

 bristles; the second endite has four or five distal bristles and two or 

 three medial bristles; the third endite has six distal bristles and 

 one medial bristle. The epipodial appendage is represented 

 by four short, bare bristles. Exopodite: The endite of the 

 first joint has eleven distal and two naedial bristles. The second 

 exopodite joint has from 33 to 35 bristles. In both specimens the 

 types of the bristles are the same as in the type species. 



Seventh limb: — Specimen a : Cleaning bristles: Distall\' 

 30 dorsal and 30 or 31 ventral bristles were situated close together; 

 proximally of these were scattered from 25 to 27 dorsal and from 21 



to 23 ventral bristles. Specimen b: Cleaning bristles: DistaUy on the one limb about 

 45 bristles were situated close together dorsaUy as well as ventrally, on the other limb 

 38 dorsal and 32 ventral bristles; proximally of these on the former limb were spread 34 

 dorsal and 33 ventral bristles, the other limb was defective with regard to these bristles. In both 



fii;. XX.X. — Giganto- 

 cypris Miilleri ii. sp. var. 

 minor ii. var. — Aiilerior 

 |iai't of tho riKlil valve. 

 SfL'ii from within; all tin- 

 lii'istli's of the rostrum an- 

 (hawii: ?; 50 X. 



