Southern Two-Lined Salamander

Fascinating facts about the Southern Two-Lined Salamander

• The black lines of the southern two-lined salamander run uninterrupted to the tip of the tail, a trait that sets it apart from its northern counterpart. This species is a small, thin salamander marked by two lateral lines along its body. Adults reach a total length of 6.5-12 cm. They are typically found in temperate forest streams, swamps and freshwater springs where they remain within a narrow home range.
• Within the southern two-lined salamander, the Cole Springs Phenotype is restricted to northern Alabama, a region where this colour form does not occur elsewhere in the species' range. The salamander as a whole inhabits the southeastern United States, absent only from peninsular Florida. It prefers small, rocky streams and seeps in forested habitats, often occupying shallow, flowing water with gravelly substrates.
• Salamanders displaying the Cole Springs Phenotype are noticeably larger and darker than the typical form of the species. The species possesses 14 costal grooves between its limbs, a feature that remains consistent across morphs.
• In early spring, each female deposits a single-layer clutch of twenty to one hundred eggs beneath flat rocks in shallow, flowing streams. The eggs are attached singly to the undersides of submerged rocks or logs, ensuring they remain in well-oxygenated water. This breeding period occurs from mid-March to April, after which the female remains nearby to defend the nest from predators.
• During the breeding season the male's premaxillary teeth become enlarged, a change that assists him when he scrapes the female's head as part of courtship. This head-scraping stimulates the release of secretions from the male's mental gland, which are transferred to the female during the mating ritual. The species relies on external fertilisation, so the timing of these behaviours is crucial for successful egg fertilisation in the shallow streams where they breed.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Southern Two-Lined Salamander

In the misty, moonlit forests of the southeastern United States, the Southern Two-Lined Salamander navigates its domain with an air of quiet purpose, its slender body gliding effortlessly across the damp, leaf-strewn terrain. As it moves, the salamander's vibrant, copper-hued markings seem to shimmer and dance in the faint light, a mesmerizing spectacle that belies the creature's otherwise subdued demeanor. With its remarkable ability to thrive in a wide range of aquatic and terrestrial environments, the Southern Two-Lined Salamander is a testament to the enduring resilience of life in these enchanting, primordial landscapes.

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