FROM THE GULF OF GUTXEA. 97 



The upper distal portion of the fourth joint is produced and forms the base of a sensory 

 filament and one or two setae. The secondary branch of the posterior antennae is very 

 short and provided with four setae — three terminal and one subterminal. Mouth-organs 

 nearly as in Laophonte similis, Claus. The outer branches of the first pair of swimming- 

 feet 2-joiuted, not reaching to the middle of the inner branches ; the first joint is about 

 two-thirds the length of the second. The inner branches of the foui'th pair, which reach 

 nearly to the end of the second joint of the outer branches, have the first joint fully half 

 as long as the second, but the first and second joints of the outer branches are about equal 

 in length. Fifth pair nearly as in Laophonte curticauda. Caudal stylets somewhat 

 divergent ; length about tln-ee times the breadth ; principal tail-setae elongate, two-thirds 

 the length of the animal. 



Mahitat. In a shore gathering from Sao Thome Island, collected January 25th at 

 low water ; and in a tow-net gathering from 20 fatlioms off Stlo Thome, collected 

 January 23rd. 



Laophonte rxoM^aEA, n. sp. (PI. X. figs. 21-30.) 



Length 'fG mm. (l-oith of an inch). Body elongate, slender. Anterior antennae 

 7-jointed, nearly as in Laophonte hrecicornis ; tlie annexed formula shows the pro- 

 portional lengths of the joints : — 



G. 7. 7. 2. 2. 3. 4 

 12 3 4 5 6 7' 



The posterior antennae and mouth-organs are also nearly as in Laophonte brevicornis, 

 except that the posterior foot-ja^ys have the second joint finely ciliate on the inner edo-e 

 and furnished with a small seta near the middle of the exterior edge. Inner branches of 

 first swimming-feet small, 2-jointed ; inner branches of fourth pair very short, scarcely 

 longer than the first joint of the outer branches, 2-jointed ; the first joint is very small, and 

 the apex of the second is provided with one stout terminal and two subterminal setae. 

 The outer branches are armed with a stout apical spine (fig. 28). Eeet of the fifth pair 

 nearly as in Laopjhoute curticauda, Eoeck ; outer margin and surface of basal joints 

 ciliate. Caudal stylets somewhat divergent ; their breadth is nearly equal to half the 

 length, and each is provided with two stout apical setae, the inner one being nearly double 

 the length of the other. 



Hahitat. Shore, Sao Thome Island, in the same gathering as the last. 



Laophonte brevicornis, n. sp. (PI. X figs. 31-37.) 



Length -58 mm. Body slender. Anterior antenna^. G-jointed, the fourth and fifth joints 



very short; the upper portion of the fourth is produced so as to extend to near the 



extremity of the following joint and form the base of a moderately stout sensory filament. 



The relative lengths of the joints are nearly as shown in the annexed formula : — 



10 . 7 . 7 . 2 . 2 . 8 

 1 2 3 4 .5 «" 



Second joint of posterior foot-jaws with a row of very fine cilia on the upper margin; 



SECOND SEKIES.^ZOOLOGY, VOL. VI. 13 



