144 Directions for pr^eserving Sea Plants. 



Shell rounded on upper margin and anteriorly ; terminating pos- 

 teriorly in an acute point, with a gibbous projection on the lower 

 margin, near posterior extremity ; shell quite smooth and free from 

 hairs, of a dirty black-colour, translucent, showing the body of the 

 animal shining through, which is very dark-coloured ; antennae seti- 

 ferous ; anterior feet falcated. 



Explanation of Plates. 



Plate XVI. Vol.1. Fig. 1 to 13, BodyofCypris pubera; theshell re- 

 moved; a. anterior lobe ; b. posterior lobe ; c. eyes ; d. antennae ; e. e. 

 anterior or first pair of feet ;y^ f. second pair of feet ; g. third pair ; k. 

 mandible and palpus; i. first pair of jaws with branchial plate; k. 

 tail. Fig. 2, one of the antennae. Fig. 3, one of the anterior legs. Fig, 

 4, one of the second pair do. Fig. 5, one of the third pair. Fig. 6, 

 the lip (a) and sternum or lower lip (6.) Fig. 7j mandible ; a. man- 

 dible proper ; b. palpus ; c. small branchial plate. Fig. 8, first pair 

 of jaws ; a. base, with its fingers ; b, branchial plate with its pecti- 

 niform spines. Fig. 9, second pair of jaws. Fig. 10, tail. Fig. 11, 

 egg. Fig. 12, young. Fig. 13, adult Cypris pubera. 



Plate V. Vol. II. Fig. 1, Cypris vidua. Fig. 2, C. Monacha. Fig. 

 3, C. Candida. Fig. 4, C. fusca. Fig. 5, C. reptans. Fig. 6, C. his- 

 pida. Fig. 7, C- Compressa. Fig. 8, one of the antennae of C. 

 Compressa. Fig. 9, one of the anterior feet of do. Fig. 10, one 

 of the third pair of feet of do. Fig. 11, C minuta. Fig. 12, C. 

 Joanna. Fig. 13, C. elongata. Fig. 14, C. Westwoodii. Fig. 15, 

 C. gibbosa. Fig. 16, * C clavata. Fig. 16, Body of Cythere reni- 

 formis, the shell removed. Fig. 17, Cythere reniformis. Fig. 18, 

 one of the antennae of do. Fig. 19, one of the anterior feet of do. 

 Fig. 20, one of the posterior pair of feet of do. Fig. 21, mandible. 

 Fig. 22, first pair of jaws. Fig. 23, Cythere albo-maculata. Fig. 

 24, C. alba. Fig. 25, C. variabilis, a. and b. Fig. 26, C. aurantia. 

 Fig. 27, C. nigrescens. 



fTo be continued. J 



V. — Directions for the preservation of Sea Plants, with Miscellane- 

 ous Remarks on a number of species collected at Cairnlough Bay^ 

 on the Coast of Antrim, in the months of May and June 1836. By 

 James S. Drummond, M. D. President of the Belfast Natural 

 History Society, &c. 



The first object to be attended to in preserving marine plants is to 

 have them washed perfectly clean before spreading. There should 

 not be left upon them a })article of sand or other foreign body, unless 



