identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
633FBE5732535A4DB54ECEB306391631.text	633FBE5732535A4DB54ECEB306391631.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Boulenophrys calciphila Zeng, Wang, Qi, Song, Lyu & Wang 2026	<div><p>Boulenophrys calciphila Zeng, Wang, Qi, Song, Lyu &amp; Wang sp. nov.</p><p>Fig. 3, Table 2</p><p>Common name.</p><p>Limestone Horned Toad (in English) / huī yán jiǎo chán (灰岩角蟾 in Chinese).</p><p>Type materials.</p><p>Holotype ♂. GEP a 596, collected by Zhao-Chi Zeng and Yuan-Hang Li on 16 May 2026 from <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=113.171135&amp;materialsCitation.latitude=25.037825" title="Search Plazi for locations around (long 113.171135/lat 25.037825)">Hutouyan</a> “ 虎头岩 ” (25.037824°N, 113.171132°E, WGS 84; elevation ca. 690 m), Daqiao Town, Ruyuan County, Shaoguan City, Guangdong Province, China .</p><p>Paratypes. 1 ♂: CIB 122581 (field number: GEP a 595); 4 ♀: GEP a 594, 597–599, same collection data as holotype; 1 ♀: SYS a 009718, collected by Dan-Yang Zhou, Hao-Cong Yang and Han-Ming Song on 15 April 2026 from <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=113.174515&amp;materialsCitation.latitude=24.902905" title="Search Plazi for locations around (long 113.174515/lat 24.902905)">Wufeng Village</a> “ 武丰村 ” (24.902904°N, 113.174518°E, WGS 84; elevation ca. 540 m), Daqiao Town, Ruyuan County, Shaoguan City, Guangdong Province, China .</p><p>Etymology.</p><p>The specific epithet calciphila combines the Latin calx, genitive calcis (limestone) with the Greek φίλος (phílos) (= loving), in reference to the association of this species with limestone karst habitats.</p><p>Diagnosis.</p><p>(1) Moderate size (SVL 49.7–52.7 mm in two adult males, 56.3–59.2 mm in five adult females); (2) snout rounded in dorsal view, canthus rostralis well developed, tongue not notched distally; (3) tympanum distinct; (4) vomerine ridges present, vomerine teeth absent; (5) dorsal skin smooth with sparse granules, discontinuous X-shaped ridge on centre of dorsum, discontinuous dorsolateral ridges present, sparse large tubercles on flanks, dorsal limbs with discontinuous transverse ridges and tubercles; (6) outer margin of upper eyelid with a prominent horn-like tubercle, supratympanic fold distinct and narrow, curving posteroventrally to above arm; (7) two metacarpal tubercles distinct, inner one distinctly enlarged, relative finger lengths I &lt;II &lt;IV &lt;III, distinct subarticular tubercle at base of each finger; (8) heels slightly overlapping when hind-limbs folded, tibiotarsal articulation reaching posterior corner of eye; (9) toes with rudimentary webbing and lacking lateral fringes, inner metatarsal tubercle long ovoid, outer one absent, relative toe length I &lt;II &lt;V &lt;III &lt;IV; (10) dorsal surface yellowish-brown to dark brown, with indistinct irregular dark-brown patches and small orange dots, dark-brown V-shaped marking between eyes, dorsal limbs and digits light brown with dark-brown transverse bands; (11) males lacking subgular vocal sacs.</p><p>Comparisons.</p><p>Since the interspecific phylogenetic affinities of Boulenophrys calciphila sp. nov. with other congeneric taxa are unresolved, we prioritised morphological comparisons between this new taxon and the 21 species recovered within its sister major clade. Morphologically, this new species closely resembles B. mirabilis and can be readily differentiated from the latter by its smaller body size (SVL 49.7–52.7 mm in two adult males, 56.3–59.2 mm in five adult females (vs. 55.8–61.4 mm in two adult males, 68.5–74.8 mm in two adult females); vomerine ridges present (vs. absent); tongue broad and rounded (vs. tongue slender and elongated); tibiotarsal articulation reaching posterior corner of eye when leg stretched forward (vs. reaching centre of eye); toes without lateral fringes (vs. toes with distinct narrow lateral fringes); and dorsolateral ridges present (vs. absent). The new species can be distinguished from the karst dweller B. liboensis by its tongue not notched distally (vs. tongue notched distally), vomerine teeth absent (vs. present) and lateral fringes on toes absent (vs. present). The new species can be easily distinguished from the other 19 congeners by its absent vocal sac in males (vs. present in B. yangmingensis, B. shimentaina, B. jiulianensis, B. gutu, B. congjiangensis, B. leishanensis, B. yaoshanensis, B. dupanglingensis, B. yunkaiensis, B. yangchunensis, B. acuta, B. gaolanensis, B. xuefengmontis, B. shunhuangensis, B. wushanensis, B. tuberogranulata, B. changyangensis, B. baolongensis and B. boettgeri).</p><p>Boulenophrys calciphila sp. nov. can be easily distinguished from B. angka, B. anlongensis, B. baishanzuensis, B. binchuanensis, B. binlingensis, B. brachykolos, B. caobangensis, B. cheni, B. chishuiensis, B. daiyunensis, B. dalaolingensis, B. daoji, B. daweimontis, B. daxuemontis, B. dongli, B. dongguanensis, B. elongata, B. fengshunensis, B. fanjingmontis, B. fansipanensis, B. frigida, B. hoanglienensis, B. huangniushiensis, B. hungtai, B. hengshanensis, B. insularis, B. jiangi, B. jingdongensis, B. jinggangensis, B. kuatunensis, B. lushanensis, B. lushuiensis, B. lichun, B. lini, B. lishuiensis, B. meihuamontis, B. minor, B. mufumontana, B. nankunensis, B. nanlingensis, B. nebulosa, B. obesa, B. ombrophila, B. omeimontis, B. palpebralespinosa, B. pepe, B. puningensis, B. qianbeinsis, B. raoping, B. rubrimera, B. sangzhiensis, B. sanmingensis, B. spinata, B. tongboensis, B. wugongensis, B. wuliangshanensis, B. xiangnanensis, B. xianjuensis, B. yezhongensis, B. yingdeensis and B. youran, by its vocal sac in males absent (vs. present). Boulenophrys calciphila sp. nov. can be distinguished from the remaining B. caudoprocta and B. shuichengensis that also lack vocal sac in males, by its vomerine teeth absent (vs. present), lateral fringes on toes absent (vs. wide in B. shuichengensis and narrow on the fourth toe in B. caudoprocta).</p><p>Description of holotype.</p><p>Adult male. Body size moderate, SVL 49.7 mm. Head length almost equal to head width, HDW / HDL 1.00; snout rounded in dorsal view, projecting, sloping backwards to mouth in profile, protruding well beyond margin of lower jaw; top of head flat; eyes moderate in size, ED / HDL 0.36, pupil vertical, near diamond-shaped; nostril obliquely ovoid; canthus rostralis well developed; loreal region slightly oblique; internasal distance slightly larger than interorbital distance, IND / IOD 1.10; tympanic region oblique, tympanum distinct and visible in dorsal view; tympanum moderate in size, margin clear, upper margin in contact with supratympanic fold, lower margin in contact with upper lip, TD / ED 0.53; large ovoid choanae at base of maxilla; vomerine ridge present, vomerine teeth absent, maxillary teeth present; margin of tongue rounded, not notched distally; subgular vocal sac absent.</p><p>Fore-limb moderate in length, RAD / SVL 0.20, HND / SVL 0.24; webbing absent between fingers, lateral fringes absent, relative finger length I &lt;II &lt;IV &lt;III; tips of fingers slightly dilated, round; subarticular tubercles on base of fingers present, distinct; inner metacarpal tubercle observably enlarged, outer one slightly smaller; an underdeveloped nuptial pad present on the dorsal surface of first and second fingers, respectively. Hind-limbs moderate in length, tibiotarsal articulation reaching forwards to posterior corner of eye when hind-limb stretched along body; heels slightly overlapping when flexed hind-limbs held at right angles to body axis; TIB / SVL 0.40, FTL / SVL 0.61; relative toe length I &lt;II &lt;V &lt;III &lt;IV; tips of toes round and slightly dilated; toes with rudimentary webbing, lacking lateral fringes; subarticular tubercles on base of toes present and distinct; inner metatarsal tubercle long ovoid and lacking outer metatarsal tubercle.</p><p>Dorsal skin smooth with sparse granules; dense large tubercles on flanks; single horn-like prominent tubercle on edge of upper eyelid; obvious supratympanic fold curving posteroventrally from posterior corner of eye to level above insertion of arm; indistinct discontinuous X-shaped ridge on centre of dorsum, indistinct discontinuous dorsolateral ridges present; dorsal limbs with discontinuous transverse ridges and tubercles; ventral surface smooth; small and distinct pectoral gland closer to axilla; single femoral gland positioned on posterior surface of thigh at mid-point between knee and cloaca.</p><p>Colouration of holotype.</p><p>In life, dorsal surface of body dark brown with indistinct irregular dark-brown patches and small orange dots, a dark-brown V-shaped marking between eyes. A vertical dark-brown band present below the eye. Tympanum light brown. Dorsal surface of limbs with dark-brown transverse bands. Tubercles on edge of upper eyelids orange. Supratympanic fold greyish-white with orange dots. Iris coppery dark brown. Throat and chest dark brown with numerous greyish-white dots; belly and ventral limbs greyish-brown with greyish-white dots; large dark brown spots on both sides of belly. Pectoral glands and femoral glands greyish-white.</p><p>In preservative, dorsal surface of body dark brown, with markings and patches more distinct, orange dots absent. Surface of chest, throat and limbs greyish-brown, greyish-white dots absent; dark brown spots on both sides of belly more distinct. Pectoral glands and femoral glands greyish-white.</p><p>Variation.</p><p>Morphometric data are summarised in Table 2. The male holotype GEP a 596 possesses an underdeveloped nuptial pad on the dorsal surface of first and second fingers, whereas this structure is absent in the male paratype CIB 122581.</p><p>Sexual dimorphism.</p><p>Males have no subgular vocal sac and exhibit smaller body size compared to females. Mature ova are observed in all female specimens. Male individuals show darker body colouration than females (Fig. 3).</p><p>Distribution and natural history.</p><p>Boulenophrys calciphila sp. nov. is currently known exclusively from two isolated karst mountain areas in Daqiao Town (elevation 540–690 m), northern Guangdong Province, China. All specimens were collected along roadside areas after rainfall (Fig. 4). Males collected in May exhibited absent or underdeveloped nuptial pads. Mature eggs were observed in all female specimens collected in April and May.</p></div>	https://treatment.plazi.org/id/633FBE5732535A4DB54ECEB306391631	Public Domain	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.		Pensoft via Plazi	Zeng, Zhao-Chi;Wang, Jian;Qi, Shuo;Song, Han-Ming;Cai, Yao-Yu;Zhu, Yun-Sheng;Lin, Shi-Shi;Li, Yuan-Hang;Zhou, Dan-Yang;Yang, Hao-Cong;Lyu, Zhi-Tong;Yang, Yi-Ping;Wang, Ying-Yong	Zeng, Zhao-Chi, Wang, Jian, Qi, Shuo, Song, Han-Ming, Cai, Yao-Yu, Zhu, Yun-Sheng, Lin, Shi-Shi, Li, Yuan-Hang, Zhou, Dan-Yang, Yang, Hao-Cong, Lyu, Zhi-Tong, Yang, Yi-Ping, Wang, Ying-Yong (2026): A new species of Boulenophrys Fei, Ye & Jiang, 2016 (Anura, Megophryidae) from karst landscapes in northern Guangdong, China. Herpetozoa 39: 291-302, DOI: 10.3897/herpetozoa.39.e202590
