Hemidactylus pseudomuriceus HENLE & BÖHME, 2003
Can you confirm these amateur observations of Hemidactylus pseudomuriceus?
|Higher Taxa||Gekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)|
|Synonym||Hemidactylus pseudomuriceus HENLE & BÖHME 2003|
Hemidactylus pseudomuriceus — RÖSLER 2015
|Distribution||Ivory Coast, W Cameroon (Jingwe (Yingui), Republic of Congo (Brazzaville), Central African Republic|
Type locality: vicinity of the camp oppostie Petite Île, Parc National d’Azagny, Cöte d’Ivoire. Map legend:
- Region according to the TDWG standard, not a precise distribution map.
NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
|Types||Holotype: ZFMK 42409, paratypes in ZFMK|
|Comment||The species inhabits primary forest near Raphia swamps|
Diagnosis. Hemidactylus pseudomuriceus belongs to the muriceus-group as defined above. It differs from all other taxa in this group by the combination of the following characters: a distinctly enlarged central row of hexagonal scales on the ventral surface of the tail (Fig. 3a); thumb normal, with claw; 14 - 17 preanal pores in males; number of scansors on the ventral surface of the first and fourth toe low (5 - 6 respectively 7 - 10).
Hemidactylus pseudomuriceus is distinct from H. greeffi by a normal versus a rudimentary clawless thumb. Hemidactylus newtoni lacks preanal pores in males and possesses slightly more (11 - 12) fourth toe lamellae (7 - lOin H pseudomuriceus) and also more first toe scansors (7 - 8 versus 5 - 6 in H. pseudomuriceus). The distinct mid-ventral row of enlarged hexagonal scales on the tail of H. pseudomuriceus is lacking in both H. longicephalus and H. muriceus. In H. longicephalus, the tail scales increase in size mid-ventrally slightly, but do not form a distinctly enlarged central scale row; in H. muriceus, ventral tail scales are small except of a few scattered enlarged ones (Fig. 3b). In addition, H. pseudomuriceus has far more (14 - 17) preanal pores in males than H. longicephalus (4 - 8) or H. muriceus (8 - 11; 8 in the holotype). Hemidactylus muriceus and H. longicephalus differ further from H. pseudo- muriceus by having only one instead of 2-3 internasal granules. Furthermore, H. muriceus tends to have more rows of scattered tubercles on the dorsum, and the tubercles are more pro- nounced than in H. pseudomuriceus. However, due to irregularities, the number of rows is dif- ficult to count, and a differentiation is only pos- sible in direct comparisons. Hemidactylus longicephalus has far more tubercles on the dorsum with usually only 2-3 normal scales between them, giving it a rugose appearance, whereas the tubercles are widely spaced in H pseudomuriceus, usually with 5-10 or more nonnal scales between the tubercles. Also, the tubercles are clearly keeled to spinose in H. longicephalus whereas they are conical in H pseudomuriceus.
Hemidactylus echinus is the only Hemidactylus species known to possess tubercles on the ventral surface of intact tails (Fig. 3c) and thus can be differentiated easily from the new species. In addition, it differs from H. pseudomuriceus by a more distinct dorsal pattern and banding of the tail, and by a higher number of scansors underneath the first toe (8 - 10 in H. echinus versus 5 - 6 in H. pseudomuriceus).
All other West African species o f Hemidactylus save H. mabouia are morphologically very distinct from the muriceus-group (including H. echinus) and can easily be distinguished from H. pseudomuriceus by the characters presented for the muriceus-group. Hemidactylus mabouia differs from the muriceus-group by the depressed tail not being cyclotetragonal (compare Loveridge 1947). This character may be difficult to assess correctly unless specimens with intact tails can be compared. However, H. mabouia can easily be separated by a single row of transversally greatly enlarged ventral scales on intact tails (frequently also present in regenerated tails) and much higher numbers of preano-femoral pores (24 - 60). Hemidactylus ansol'gii which has been grouped with H. mabouia by Loveridge (1947) is very distinct from this species. Its slender elongated body with avery long (Table 4) and pointed head and a narrow separation o f the eyes (Fig. 1d - recent material shows that this is not preservation artefact), and a cylindrical tail distinguishes H. ansorgii also from H. pseudomuriceus and all other species of the muriceus-group [from HENLE & BÖHME 2003].
|Etymology||Named in allusion to its similarity to H. muriceus.|
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