I H A 



274 



T H A 



dad for morethan aociitu >. Thibet himself 



appear^ tn T learned 



re': 

 n*' 



389.) 

 uaho a very Tolmr 



\ the Hiio:iMno' >i the * Am- 



Miphorum Hibliotheca,' take up about two folio 



Dl the works of 

 He wrote also 

 i iiionic* of 



lieal, and zoological 

 talations into that ' 

 OaJen, Pto! 



s*Yeral in E <>us 



the Sabians : but none either of thc-c or of his Arabic 

 far as the writer is aware . been publi-hed 

 or t. .. i! c\i-t in mann- 



-ome of the Kiirouean libraries. \Viistenfeld, 



//..-.Nu-oll 

 . : p. i->7. -!tf>: 

 Of H'--i. !>t:i ',, **' r. 'f'-L;'i .Lit"ri Ai'i'-i. 



V'HKT HI \ S K\ \'.N. (hi- irrandson of the pre- 

 redinsr, wi - arc triven by Ibn Abi 'Ossjiibiah 



urn de Clasiibii mi. cap. Id, $ :V. 



I'll 'l-IIasan Thalut Hen Senan Hen Thabet Hen 

 Korrah. I ' ln-ated. like the other membei-s of his 



family, as a physician, philosopher, and mathematician. 

 and wag superintendant of the hospital at Bagdad during 

 the reiirn of Al- Motteia, the twenty-third of the 'Abhaside 

 Khalifs. \.n. :i:M-:iU:l (A.D. 946-971 He expounded the 

 writings of lli])pocrates and Galen : but his principal work 

 appeals to have been a History of Ins Own Times, from 

 the year A.M. 2;M> A.D. !Hi: to t'he year of his own death. 

 \.D. '.>7.'-4\ which is highly praised l>\ Alni 

 //;/. Dyna*t., p. 2t)H . and was con- 

 tinued atler his death by his nephew Helal. and by other 

 >r. Sprenser. "in the notes to his iran-'ation of 

 >'udr'M Gold and Mines ot'Gems.' vol. i., 



p. 'J4. Lond., 8vo.. 1841. corrects an anachronism of Haji 

 Khali -ribes this work to his grandfather Thabet 



Hen Korrah. 



\Vii>1cnfeld. fii'x-fffirntf (/T Aase- 



mani, Bibioth. ()ri'-n/., vol. ii.. p. 317. 



THAI.AMITA. [!' . vol. xviii., p. -146.] 



THA'I.AMIS from SaX,^..,-. the biidal chamb. 

 botanical term which was applied bv Linmrns to the calvv 

 or outer whorl of floral envelopes. Tonrnefort applied the 

 term to a receptacle that i- not fleshy, but surrounded by 

 an involucre. In this -en-e it i- u-rd in common with the 

 Clinanthium and Phoranthinm. Hy some writers, as 

 !), Camlolle, the term is applied to the receptacle of all 

 plants or that point of the rachi- or stem around which 

 the floral envelopes are seated. Thus those plants in 

 which the petals and stamens are inserted into the recep- 

 -titute the first ThalamifiorH'. of the 



i 'andolle's natural arrangement of plant-, 

 -o used in (YyptoL'amie botany, in common 

 with Thallus, to express the bed of fibre- from which many 

 funiri spring up. It i also improix'rly used hy some 

 e the shields or apothecia of lichens. In 

 term that has been applied in so man;, 



d, that it i- desirable it should be 

 with, or only used in a very obvious 



TH AI.A'VsKM A. i 'u\ ier> r-mn- for a irenus of fo<itlc 



; , . placed bv him 

 ! 'V him : 



.!;((!. Tlv mi. 

 Hut one alxloniinal 



- or to 



' ier into the followim 



1. '1 -nii:e pru] 'led. 



placed very forward, and 

 no bristle-like pru 



'.ffHfl 



or r. '. 6. 



2. The Kchiiiri, 

 nno> . uiity i-. furnished with some trans- 



V.\ 

 Gm., Pa! ' . xi. l-<). Common on sandy 



bottoms on the Kreiu-b coacU where the iikhernicn uie it 

 an a bait. It u also found out! gene- 



rally, and is naiil to tht c..d-lisb. 



H. ^ 



>i-, besides the 1 v** of the il-lnuri, 



h.u. uudei tluir anterior put a snr- 



rounded with cilia. 



ixjti* thaliusfiitoiitet, Otl 



N.H Mates that a lie an- 



toim of the ThaJatitma hatl demonstratei! I the 



pliue winch he had assigned to them w;,- 



TH \ line ior une of the T.' 



1 IIAI.ASSIANTHI S. \|. Ki'ipp.-rsiiaiiu- for a u'eiuis of 

 Art i it i . .iith raiui- 



THAHIA.] 



THALASSI'DROMA. [I'KIHKI.S, \ol. \\iii., p. 43.] 

 THAl.ASSl'N A. rTKAi^wiNiANs.] N.H. Hie stu- 

 dent should be careful not to confound the crustaceou* 

 ircnus T/iii/uxxiiia with the echimxiermalout. TH.M.AS- 

 SKMA. 



THAI.ASSIMANS. 'Hie ireuus 7 CUtreille 



consi-ts of those macriuous decapods which hiue the 

 four anterior feet terminated by two finder-: the foliations 

 of the lateral fins of the end ol the tail narrow and eloii- 

 cated, without ridges; and the last sequent of the tail, or 

 the intermediate piece, ill the form of an elongated 

 triangle. Sometimes the four anterior feet, or t! 

 feet and one of the second, are terminated b 

 finirers. fonuinc a claw perfectly. The I 

 are the lonivc-t : the lateral foliations of the iin ti 

 the tail are in the form of ictft at 



the ]>osterior border: the intermediate piece, on the con 

 trary, narrows from the base to the termination, and eiuLs 

 in a point. 



M. Milne Edwards arranges the I'amily of Thalassinians, 

 or Jliirrnirhiif Mumtru, between the w and the 



Aftaciatu. 



The Crutituri-n of which this small but interestiiii: family 

 i:pn-cd r. - h other in appearance, and me 



remarkable for the extieme elongation of their abdomen 

 and the small deirree of cousi-lcnce ol' their inteiruni. 



.'/// f'/nif small, and very much 



compressi'd laterally ; tenninateil. ^cneially. in front by a 

 MT\ short rostrum, but somclm 1\ wiihout 



Eyes ordinarily vcrv small. Internal miti'iiiiif terminated 

 by two multi-articulate filaments; tin: external ones in- 

 serted externally and a little below the iirst ; their pe- 

 duncle slender, cylindrical, and without a spinimiform 

 lamina, carries at most only one very small mo\' 

 -pine, which icprcsents that appendage. Disposition of 

 the parts of the inniith \anabi, linear 



thnmirhout its length, and not constitute -iron. 



Anterior feel lanre, more or less completi ly didactylous 

 and trianirular ; the next pair raised on each fide of the 

 thorax. Alnlnmm \ei\ IOIIL'. and. in treueral. \eiy nanow ; 

 rather depressed vertically than compir-scd luteiallj : the 

 lateral borders of the dorsal arch of its \nrious 

 but little prolomred. and do not incase the 

 feet as in the SIIKIMPS. noi dues the a! donn i,.nish 



much in si its posterior pint. The structure of 



its jipn Mi-iiiou of the respiratory 



..il\ exist.-, as it ordl- 



naril\ ' iioracic branchiae, em 



under the carapace in npecial cavities : sometimes, on the 



thoracic branchia'. ; . 



ancbial ap]>en.: udcd under the abdomen 



and aHived to the tiilse n < -I . \ pun this important difference, 

 M. Milne Kdwanls. who is the antho. of the clia. 

 iriven above, founds his division of the family into two 

 tribes, the Cryptobranclnds and 11 



1. ( 'nplobianchiils. 



Under this proup M. Milne Kdv, 

 Thiilii\xiiiiniiK which are without it -\ 



suspended under the abdomen. Their in L'e- 



neral composed of cylinders, united after the manner of a 



brush. All the species whose habit- n live m 



nd, ill which they burrow deeply. The following 



MIL: to this tube : ' 

 Axia; Oebia ; and 77/n/<;*A///n. 



(iiin. rds.) 



Get. ', ovoid, and without 



any roslrifprm prolongation. Hy* pioji i-tiiiir. lar^'e. and 

 iicarlj p\ ritbrin. Internal antenna short, cyhnch-iual, and 



