Polybranchia mexicana, Medrano & Krug & Gosliner & Kumar & Valdés, 2019
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publication ID |
B97B947-E1BA-41DD-AD01-C4C464447E48 |
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publication LSID |
lsid:zoobank.org:pub:B97B947-E1BA-41DD-AD01-C4C464447E48 |
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persistent identifier |
https://treatment.plazi.org/id/03B34269-FFEC-FF8A-FC55-255DFECCFB36 |
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treatment provided by |
Plazi |
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scientific name |
Polybranchia mexicana |
| status |
sp. nov. |
POLYBRANCHIA MEXICANA View in CoL SP. NOV.
( FIGS 2, 3, 6H, 8J, 20, 21)
Type material
Holotype: Los Arcos, Bahia de Banderas , Jalisco, Mexico, 26 February 2006, one specimen, 10-mm long, isolate MM065 ( CASIZ 174098 ).
Additional material examined
Bahía Magdalena , Puerto San Carlos, Mexico, 1 September 2015, one specimen 10-mm long, isolate MM060 ( CPIC 01483 ) . Bahía Magdalena , Puerto San Carlos, Mexico, 1 September 2015, one specimen 10-mm long, isolate MM061 ( CPIC 01484 ) . El Anclote, Nayarit, Mexico, one specimen, 11-mm long, isolate MM108 ( LACM 174951 About LACM ) . Mazatlán, Mexico, isolate MM111 B, tissue only.
Description
External morphology: Body and rhinophores lacking papillae. Colour translucent dark brown with numerous white specks; rhinophores translucent olive-green with few white dots; pericardium pigmented with snowy white. Cerata with one or two large black dots on the dorso-medial surface and with few small black dots scattered throughout. Foot olive-green with scattered white specks.
Internal morphology: In an 11-mm long specimen from Nayarit, Mexico (LACM 174951), radula with 32 teeth: seven in ascending limb, six distinct teeth and 19 teeth encased in tissue in descending limb ( Fig. 21A). In a 10-mm long specimen from Jalisco, Mexico (CASIZ 174098), radula with 25 teeth: five in ascending limb, five distinct teeth and 15 teeth encased in tissue in descending limb ( Fig. 21D). Additional teeth encased in ascus in both specimens ( Fig. 21C, F); number unknown. Leading tooth with two rows of ten blunt denticles on convex basal surface in specimen from Nayarit (LACM 174951); two rows of 13 blunt denticles on basal surface in specimen from Jalisco (CASIZ 174098). Denticles small near base, larger distally, decreasing in size at hooked cusp, in both specimens (LACM 174951; CASIZ 174098) ( Fig. 21B, E).
Penis long, smooth and cylindrical. Wider at base and narrowing towards tip ( Fig. 8J). Penial stylet not observed.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.