A living bivalve gastropod of the order Sacoglossa found in Japan by Kawaguti and Baba in J959, was described as a new genus and species  Tamanovalva limax

Rao, K Prabhakara

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NATURE October 23, 1965 voe, 208 Fill . 1. TwO JiVI) spct'!ll\('w; of i1e,'/lielinin limu.t (K:l.lI'uguti I\nd llab:. lOuU) ( i( 25) 1875 a nd included it. ullder the sub-fmnily Bert hcJ in iinf. BOHts, 1949, of 1,110 filUl.ily Jullid ao DlLll, l S98. Sincn the:. living mombers of t his gfmlls have boou mported from .. n umber of othe r Pa,cific locali ties in J apan:>, Austra lia Califoruia' and Hawo. ii ll , and from .Jaml:tica' ifl ti. ~ At,]antic. Tho pm'pose of this com munication is to reeor tho collect/ion of l iving :;pecim.ens of B erthpli'nia for t t. fil'st time ffom tho Indian Ocean I'egiun . Rocently, ,,,hile ~xa.Jl1i.nillg nudibmnch m olluscs nea: the jotty of the Central 1\,laru'ie Fit;hcrios ]{,cscu.rch lIB t:-tutc a t Mandn.p n.m Camp facing th(~ Gulf of Mannal' . ! camo across four spocim.ens of sll"lell lJiwllve gastropotb fonnd attach od t o tho roots of t ho greon nlga CaulerpJ racem,osa (Forsskl l ) J . Ag'l.rclil, whiuh on CI080 oXH.minatio=. l'esemhled Be'i·thelim·.(L limax in 0.11 essentia l foatuTl' ~ (Fig. 1) . The mcnstlI'CmantR of tho f OUl' specimens a> g iVHI1 in Ta.blo 1. Specimen No. 1 e , • Table 1 L ength (nun) 2· 76 !!·53 !!·41 2'00 Hpight (rom) Hl4 }·jG 1·71:1 1'3~ Tho 1mbitn,t of Be1·thelin'ir:t appears to be re~Ll' ictcd variolls spocies of CUll lm'pa on which it foods_ I ts know-=. distribu tion along wil h t he algal haLitat. if) shown ~ T ttble 2. Record of the Bivalve Gastropod Berthelinia lim.x (Kawaguti and Saba 1959) from the Indian Ocean The pl"cRonL RpecilUCI:s rcsolllulo the F &cifia speci.· and tho difforoncl;\.<\ noted aro very minor and not sufficier.-to Wtll.·l·fLtlt any specific sept)r"tioll . Thfly are, hOWO\' N di st.inctfrom tlw ViTos t Atla.nt,icspecics, B ertheliniu. cariM£-Edm ullds lO• whoro Lhe sh eIl valves arc ~'l'ec~\ or grcy·gl·C"-·7". often t inged brownish , with m O"f(l 01' less d istinct. .)'("11.--1'1'"Y5. A LIVING bivalvu gastl'opod of the onlHT Sa-cog-Ioss,!" fOlll1d in Japi-"!.Il by K awa.guti I"Jnd B abi?,l in J959, wes describeu as tt new genus and species T arna!n01xl.lvo, limax. K een a.nd Snl.ithl!', Raba3 aud T11.y lor a nd Sohl~ synonym-izod t,he gOllus Ta.m!tnovalva K awagnt.i and Baba 1959, w ith vhe Eocene l>aris Basin fossil genus Berthelinia Cl"O.'l50 The i1nimals aro leaf g rol'll in colour wi t,h a.lU'icul~. ~ .. rhinophoros orllamt"ntcd with opaqne whito spots. T_ hf':(~ c1 , nock r..1.d s')l~ ceo light gnlt'll in colom, wh ile : ~ :)p<:e. No. L 1 e • , 5 6 7 Bertheliui(,/imll:l; J1ertl.el-inifl typica ]Ju(}lefinia au.stralilf nertheUnia chllJ,.i,l Rtrlhrlinia sp '? lJertlu:Uni(1 ('arihlHa Bo-the/-iuia lima :/; Table 2 AI g:t1 habitat ltcrercnr. r. I~~--~--~----~-~------~----~----I C(,ulerplt ohlmurfl~ Kuw:;guti :Uld Hau:! (n'r. 1) CfUlierpa $talpclli/Oj·1tlU; Burn (r('f. 6) C(lfuerp«. ,calpelfi!on"ii< Bum (nf. 6) C'aulujlu br()!G'lIii OUHlerpa $'implicitl$CHla C«ulerpa 'ruce1i10sa Cafliupa. IItftuinrirride4 Cliull'rpu raCl'm"llU (;nllluprf ~·erticillula. Cl.wlerjJa mCemOSf! Jecen !lnd Smith (ref. 2) Kl(~' (rct. 8) E(llllUIl,ds (ref. 10) Pn'!$cnt work Lucall ty Hlffift Seto. Ill.hmd tica, Japan Torquny. Victorin, Australia Torqun.y, Vicwrla, Australia P uc-rto Ballandm Bay, lbja. Ca lifornia R olon . Kaua!, lInwaii Port Rn'yal , J::llunlc:l. UandnpnOl Camp (Gulf of hl:l.wmr. India ) No. 5006 October 23, 1%5 NATURE numtl(~ and_...the livor I1I'C det~p groan . A few irregularly ph\.Ced dark green spots aro present on the liv~r. The nLlvoa of thfl sholl a l'e oqnal in Hi'ZA, light green in colour, amI ext.rerucly t·b in and fragile, with a smoot·h 8m'face 'i\'hich is markoo by fino growth lines. Tho helicojd proto-ronch is tr::mslucont and of one and half whorls, attn.cbed to tho posterioJ' extremi ty of tho IAft valvo as in Be:rthelinia li'ma.?;. The prot ooollch is wl'cctod bnch...-wards extending hori~onta.lIy OV('l' the rjght vn.lvfl. Tho position of tho yellowish white circular attachmont of the adductor mW3cie is as in B. limfl.'C . Dna of the specimons laid flll ('gg string which WA.$ kept ,tIlder observatiol\. The early d ovolopment agreed in a ll essentiA.I respec l,s with tho obsorvfI,t.ions of l{flowa,guti <l.nd Babl\l Hnel KtlwaguLi and Yo.masn ll ,u. on B. limrr.x. \Vit,h tho l'000n1 of tho gOJ1l.lS i:Je1·t1wlinia fmm the Iltd ian coa15t it could bo presum.ed that t he spocies of the ?cnus are llist,l'ibllt('d Lhroughout tho coastul waLets of nil the wannor ReM . A careful search migllt Pl'O\'O that it is widely distl'ibntf'd in the Indo-PIl.cifie 'wa-tors. I thA.uk Dr. Umama.heswarn Hf\O for jdent,ifying Ole ;.l. lga , Dr. r. S. B. H .• Tnmef.l for ncivieH, and Mr. K. G. XambilLr [01' tho photograph. Central Me.rino Fisll(,J'it..'S, Research J nst.ituto, ::\fandapam Camp. India. K. PRAJ3f{AKARA RAO : KnW:l.gll li . S., UT\d naill!, 1( " Bioi. J. OI.:II!llIma flni;:., 5, 177 (1060). ! Keen, A. "M., ;I1\rl Smith, A. G" Proc. Cnl\!. Acad. Sci., 30, 44 (1061). IJfLoo,le, Venus, Kyolt), 21, :\<:0 (1961). ' 'T':\)'lor. W. U., nnd Soh\.:'i . .1:' .. Mal(froluJia.l, 7 (962). ' s."":I , K .• Sclo Mar. m ol. Lnb. , 9, Si (UHU) . • Rum. It. . NaluM,lSB. J'iO ( 11)60). - Keen. A. :\r., S alUre.1So, 1I0G (1960), K:t~·, :E. A., N(ll1m', 19~ , 1)(\ (H'HH~) . • Nlhllltl\ds, 1\[., NatHl'I' , 195, 402 ( 10(\ ~). :. 'Edmu!\(is, M., J. J.i r!l1 . Soc. (Zoo1.), 41, 732 (l0(\3) . lliawllguti, S., al\d Ynlllnsu, T. , Riol .. .!. Ok(lyama U1iiv., 6, 1:-13 (1060). ,. KaW:l.b'Uti, S., nnel \'UlIWSlI, T., Riolo .f. OhrYllmfl. U1liv., 6, H,O (19(>0). 4U5 

Record of the Bivalve Gastropod Berthelinia limax (Kawaguti and Saba 1959) from the Indian Ocean

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Record of the Bivalve Gastropod Berthelinia limax (Kawaguti and Saba 1959) from the Indian Ocean

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