COl'EPODA. 26? 



and outer branches 2-jointed, 4th pair with outer branch 3-jointed, and inner branch 

 with 1 joint only ; 5th pair 2-jointed, foliaceous. 



Laophontella differs from both Laophonte and Pseudolaojjhonte in the absence of 

 claws in the 1st natatory leg ; from Laoj>hontodes in the inner branch of 4th pair 

 being only 1 -jointed. 



With only one specimen, however (a female), to judge from, the generic characters 

 may in the future require some revision. 



Laophontella typica, n. sp. Plate VIII., rigs. 9 to 16. 



Length, female, 0'5 millim. ; male unknown. 



Cephalic segment long and tumid ; produced posteriorly into long acute spines. 

 Lateral edges of abdomen more or less notched. Anterior antennas nearly half as 

 broad as long, 5-jointed, profusely setiferous, the proportional lengths of the joints 



1. 2 3 4 5 



being as follows: ---'' ' Q ' The 1st joint has two claw-like spines, and the 3rd 



joint another, of larger size. 



Mouth organs similar to those of Laophonlodes. Branches of 1st pair of natatory 

 legs of equal length ; outer branch 3-jointed, as are the outer branches of 2nd, 3rd, 

 and 4th pairs ; inner branch 2-jointed, the 1st joint being double the length of the 

 2nd, both branches terminating in long setse. Inner branch of 2nd and 3rd legs 

 2-jointed, and of the 4th 1-jointed, all armed with strong spines. Basal joint of 

 5th pair small and spinous ; outer joint small, bearing 7 spines. One specimen 

 only, a female, was found in the Muttuvaratu pearl oyster washings. The stout 

 rugged anterior antennas, the notched abdominal segments, and the inner branches of 

 the swimming feet clearly distinguish this species from other genera. 



Cletodes linearis (Ola us). 



Taken in the Suez Canal, and also in various washings of Invertebrates from the 

 Gulf of Manaar. 



Tetragoniceps dubia, n. sp. Plate VIII., rigs. 17 to 22. 



Length, female. 0"9 millim. ; male unknown. 



Cephalothorax 5-jointed, the cephalic segment equalling in length the following 

 three combined, and considerably stouter. Ptostrum short and blunt. Anterior 

 antennas 8-jointed, the 1st joint non-setose, but projecting posteriorly into a beak- 

 shaped protuberance. The other joints very setose, the 4th bearing a long narrow 



', r , . , , , . , . . 1 . 2. 3. 4. 5. G. 7. 8. 

 tilanient. Ine proportional lengths of the joints are 



Posterior antennae and mouth organs generally like those of T. malleolata. Inner 

 branches of 1st to 4th pairs of natatory legs 2-jointed, the outer branches 3-jointed. 

 Fifth legs 1-jointed, with partial segmentation, and having 10 seta?. A pyramidal 

 spine projects from the surface. Furcal rami about twice as long as broad. 



2 m 2 



