325 



L.EMODIPODA. 



LAGOTHRIX. 



326 



The Lmmodipoda of Latreille hare all four setaceous antennae 

 carried upon a peduncle of three joints, mandibles without palps, a 

 vesicular body at the base of four pair of the feet at least, beginning 

 with the second or third pair, reckoning those of the head. The body, 

 which is most frequently filiform or linear, is composed (reckoning 

 the head) of from eight to nine joints, with some small appendages, 

 in form of tubercles, at its posterior and inferior extremity. The feet 

 are terminated by a strong hook. The four anterior feet, of which 

 the second are the greatest, are always terminated by a monodactylous 

 claw. In many the four succeeding feet are shortened, less articulated, 

 without any hook at the end, or rudimentary, and not at all fit for 

 ordinary use. 



The females carry their eggs under the second and third segments 

 of the body, in a pouch formed by approximated scales. 



The Lremodipoda, are all marine, and Savigny considers them as 

 approaching the Pycnogonidce, and making, with that form, the 

 passage from the Crustacea to the Arachnia. 



Latreille brought the forms under one genus, Cyamui, with the 

 following sub-divisions and sub-generic appellations. 



1. Fttiformia, (Latr.). 



Body long and very slender, or linear, with longitudinal segments ; 

 feet similarly elongated and slight ; stem of the antenna; composed of 

 many small joints. 



Leptomera, Latr. (Proto, Leach). Feet fourteen (reckoning the two 

 annexed to the head), complete, and in a continuous series. (Latr.) 



In the Leptomera (Gammarus pedatus, Mull., 'Zool. Dan.') all the 

 feet, with the exception of the two anterior ones, have a vesicular body 

 at their base. In the Proto of Leach (Cancer pedatui, Montague, 

 'Trans. Linn. Soc.,' ii.) these appendages are peculiar to the second 

 feet and the four succeeding ones. 



Leptomera pedal a may be given as an example. 



Lfftomtra peiala, magnified. 



ffaupredia, Latr. Feet ten, in a continued series ; the second and 

 two succeeding pairs have a vesicular body at their base. 



The species are found on the coasts of Europe, France, to. 



Caprella, Lam. Feet ten, but in an interrupted series, commencing 

 with the second segment (inclusive), and not reckoning the head. 

 This segment and the following one have each two vesicular bodies, 

 and are totally deprived of feet. 



The species are found in the northern and temperate European 

 oceans. 



The Latmodifoda of this section keep among the marine plants and 

 sponges, and walk like caterpillars, turn frequently with rapidity on 

 themselves, or set up their bodies, vibrating their antenna; at the 

 same time. In swimming they curve the extremity of the body. 



2. Oralia (Latr.). 



In this subdivision the body is oval, with transverse segments. The 

 stem of the antenna: appears to be inarticulated. The feet are short, 

 or have but little length ; those of the second and third segments are 

 imperfect, and terminated by a long cylindrical joint without hooks ; 

 at their base they have an elongated vesicular body. These Ltemo- 

 dipoda form the sub-genus. 



3. Cyamut, Latr. (Larunda, Leach.) 

 M. Latreille states that he has seen three species, all of which live 



on Cetacea, and the most known of which, Cyamui Ceti (Onitcus Ceti, 



Linn. ; Squilla, Degeer ; Pycnogonum, 



Fabr. and Sav.), is found also on the 



Mackerel The fishermen term it the 



Whaie-Louse (Pou de la Baleine). 



Another species, very analogous to the 



first, was brought back by Delalande 



from his voyage to the Cape of Good 



Hupe. The third and much the 



smallest is found on the Cetaceans 



of the East Indian seas. (Latr.) 

 M. Desmarest gives the La-tMdipoda 



the same position as M. Latreille, and 



divides them also into two sections. 



The firit, consisting of Leptomera, Latr. and Lam. (Proto, Leach ; 



Caprella, Lam.) ; the second of Cyamut (Cyamui, Latr. Lam. ; Panope, 



Leach ; Larunda, Leach). 



Oyamtu Ceti, magnified. 



M. Desmarest remarks that M. Latreille never saw the Leptomcree 

 themselves, and that he has separated them from Caprella and Proto 

 from published figures only. 



M. Milne-Edwards makes his Legion of Edriophthalmians comprise 

 the Amphipoda, Isopoda, and Lmnipoda. 



LAGANA. [EcHiNiDJ!.] 



LAGENA'RIA (from 'lagena,' a bottle), a genus of Plants belong- 

 ing to the natural order Cucu,rlitace<e. The flowers are monrocious, 

 the calyx campanulate, with subulate segments shorter than the tube. 

 The corolla is white, with obovate petals spreading below the edge of 

 the calyx. It has five triadelphous stamens, the fifth one distinct ; 

 three subsessile granulated stigmas, obovate compressed seeds, tumid 

 at the margin, 2-lobed at th6 apex. 



L. vulgaris, Common Bottle-Gourd, ia a musky-scented plant, and 

 clothed with a soft down. It haa a climbing stem, with tendrils from 

 3- to 4-cleft. The flowers are stellated, spreading, and in clusters ; 

 the fruit in shape like a bottle, when ripe of a pale-yellow colour, 

 sometimes six feet in length. When dried it becomes hard, and ia 

 used to contain water ; it is then of a pale bay-colour. In its wild 

 state this plant produces a poisonous fruit, and Dr. Royle states that 

 a very intelligent native doctor informed him that cases of poisoning 

 have occurred from eating the bitter pulp in the district where it 

 grows. Some sailors also are' said to have died from drinking beer 

 that had been standing in a flask made from one of those gourds. 



These injurious effects seem however to be removed by cooking, 

 for Don says that the poor people among the Arabians eat it boiled 

 with vinegar, or fill the shells with rice and meat, and so make a 

 kind of pudding of it. The pulp of the fruit is often employed in 

 poultices : it is bitter and purgative, and may be used instead of 

 colocynth. This species grows abundantly in Egypt and Arabia; 

 the Arabians call it Charrah ; it thrives wherever the mountains are 

 covered with a fit soil. There are three other species enumerated by 

 Don growing in Guinea and the East Indies. 



L. idolatrica is held in great veneration by the Hindoos in their 

 religious ceremonies. 



(Don, Dichlamydeoni Plants ; Lindley, Flora Sfedica.) 



LAGENORHYNCHUS. [CETACEA.] 



LAGERSTRCE'MIA, a genus of Plants of the natural family of 

 Lythracece, which extends from the Malayan Archipelago into China 

 and Japan, as well as along the foot of the Himalayan Mountains to 

 the northern parts of India. The genus was named by Linnaeus in 

 honour of Lagerstro3m, who was director of the Swedish East India 

 Company and imported many interesting plants from India and 

 China. The species are few in number, but most of them highly 

 ornamental in nature. L. Reyirue especially forms a small tree and is 

 conspicuous from its large rose-coloured flowers, of which the petals, 

 standing out on rather long claws, more fully display the varied out- 

 line of its undulated limb. The bark and leaves are accounted purga- 

 tive and hydragogue, the seeds narcotic. L. Indica and L. parvijlara 

 are small and shrub-like, and suited to our hot-houses, but all require 

 moisture in the season of flowering. 



LAGIDIUM. [CHINCHILLID.E.] 



LAGOMYS. [LEPOBIDJ3.] 



LAGOPUS. [TETRAONIDJ?.] 



LAGO'STOMYS, or LAGOSTOMUS, a genus of Mammalia belong- 

 ing to the order Rodentia and the family Chinchillidce. L. trkhodac- 

 tylue is the Viscacha, or Biscacho. [CHlNcniLUD^,.] The accom- 

 panying figure was taken from a specimen in the Zoological Gardens 

 Regent's Park. 



Viscacha, or BiBchaco (Lagostomys trichodactylut). 



LA'GOTHRIX, M. Geoffrey's name for a genus of South American 

 Monkeys, thus characterised : 



