A detailed morphological investigation, including osteological anatomy based on micro-CT scans, of two poorly known monotypic genera and species of gobiesocids, Lissonanchus lusherae Smith 1966 and Briggsia hastingsi Craig and Randall 2009, revealed that no generic-level differences existed between the two species. Briggsia Craig and Randall 2009, therefore, is a junior synonym of Lissonanchus Smith 1966. Lissonanchus is rediagnosed, having the following characters: 30 or 31 vertebrae; cephalic lateral-line canal pores poorly developed, including 2 nasal, 2 lacrimal and 1 postorbital canal pores; posterodorsal portion of anguloarticular strongly expanded laterally with bifurcated process; gill membranes on each side united ventrally, attached to the isthmus; 4th gill arch without filaments; double type adhesive disc; flattened papillae on disc region A continuous across center; flattened papillae on disc region D arranged along disc edge and continuous with papillae on disc region A; center of anterior disc (= middle area between disc regions A and D) lacking papillae; small fleshy pad on lower part of pectoral-fin base; anterior part of dorsal-fin base lacking a swollen fleshy appearance; general fresh coloration, including brownish-green body, dark brown strip extending from snout tip to posteroventral part of head through eye, and whitish part on lateroventral surface of head (bordered by dark brown strip). In particular, the anguloarticular feature of Lissonanchus is likely unique within the Gobiesocidae and is regarded as a putative autapomorphy for the genus. In contrast, the two species could be distinguished from each other by species-level differences, including counts of pectoral-fin rays, number of teeth on pharyngobranchial 3, jaw lengths, and streak patterns on the body. Accordingly, Lissonanchus is now considered to include two valid species: L. lusherae (type species) and Lissonanchus hastingsi, new combination. Although Lissonanchus was previously included in the subfamily Diademichthyinae, the genus does not share any diagnostic features of that subfamily, and the subfamilial assignment of the genus remains equivocal, like other Indo-Pacific genera considered as incertae sedis within the Gobiesocidae (e.g., Aspasmogaster Waite 1907, Conidens Briggs 1955, and Creocele Briggs 1955).

对两个鲜为人知的单型虾虎鱼属和种（ Lissonanchus lusherae Smith 1966 和Briggsia hastingsi Craig and Randall 2009）进行了详细的形态学研究，包括基于显微 CT 扫描的骨学解剖学，结果表明这两个物种之间不存在属水平差异。因此， Briggsia Craig 和 Randall 2009 是Lissonanchus Smith 1966的初级同义词。Lissonanchus被重新诊断，具有以下特征： 30 或 31 个椎骨；头侧线管孔发育不良，其中鼻管孔2个，泪管孔2个，眶后管孔1个；角关节的后背部分横向强烈扩张，并具有分叉过程；每侧的鳃膜在腹侧联合，附着于峡部；第四鳃弓无丝；双型粘合盘；椎间盘区域 A 上的扁平乳头连续穿过中心；椎间盘区域 D 上的扁平乳头沿椎间盘边缘排列，并与椎间盘区域 A 上的乳头连续；前椎间盘中心（=椎间盘区域 A 和 D 之间的中间区域）缺乏乳突；胸鳍基部下部有小肉垫；背鳍基部的前部缺乏肿胀的肉质外观；一般新鲜的颜色，包括棕绿色的身体，深棕色的条带从吻尖延伸到头部的后腹侧部分，通过眼睛，以及头部的侧腹表面的白色部分（以深棕色条带为界）。特别是， Lissonanchus的角关节特征可能在戈比鱼科中是独一无二的，并且被认为是该属的推定自体变体。相比之下，这两个物种可以通过物种水平的差异来区分，包括胸鳍条的数量、咽鳃3的牙齿数量、下颌长度和身体上的条纹图案。因此，Lissonanchus现在被认为包括两个有效物种：L. lusherae（模式种）和Lissonanchus hastingsi（新组合）。尽管Lissonanchus以前被归入 Diademichthyinae 亚科，但该属并不具有该亚科的任何诊断特征，并且该属的亚科分配仍然模棱两可，就像其他被认为是 Gobiesocidae 内不确定的印度-太平洋属（例如Aspasmogaster Waite） 1907 年，Conidens Briggs 1955 年，Creocele Briggs 1955 年）。