Dorsally the antennular and antennal segments each bear a well-developed tergite.
Haug Carolin, Sallam Wafaa S, Maas Andreas, Waloszek Dieter, Kutschera Verena, HaugJoachim T 2012, 'Tagmatization in Stomatopoda – reconsidering functional units of modern-day mantisshrimps (Verunipeltata, Hoplocarida) and implications for the interpretation of fossils',Frontiers in Zoologyhttp://www.frontiersinzoology.com/content/9/1/31. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Hermit crab olfactory aesthetascs are arranged in a field on the distal segment of the antennular flagellum.
Katrin Christine Groh-Lunow, Merid Negash Getahun, Ewald eGrosse-Wilde, Bill S Hansson 2015, 'Expression of ionotropic receptors in terrestrial hermit crab's olfactory sensoryneurons', Frontiers in Cellular Neurosciencehttp://journal.frontiersin.org/Journal/10.3389/fncel.2014.00448/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Putative chemosensory (non-aesthetasc) and mechanosensory axons represent a different pathway and innervate the lateral and median antennular neuropils.
Oksana eTuchina, Oksana eTuchina, Stefan eKoczan, Steffen eHarzsch, Jürgen eRybak,Gabriella eWolff, Nicholas J Strausfeld, Bill S Hansson 2015, 'Central projections of antennular chemosensory and mechanosensory afferents in thebrain of the terrestrial hermit crab (Coenobita clypeatus; Coenobitidae, Anomura)',Frontiers in Neuroanatomyhttp://journal.frontiersin.org/Journal/10.3389/fnana.2015.00094/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)