Een Neolatijns drama over de Verloren Zoon door Joris van Lanckvelt. Tekst met inleiding, vertaling en commentaar. With a Summary in English
Johann Wolfgang Wägele
The morphology of the only two known hypogean Paranthuridae (Cruregens fontanus Chilton, 1881; Curassanthura halma Kensley, 1981) is described. Curassanthura has no closely related marine relatives and must be placed at the base of the more specialized Paranthuridae; Cruregens is closely related to the specialized genus Colanthura, which lives in the upper littoral. Comparing the hypogean paranthurids with Colanthura, several analogies can be found in the hypogean species (body slender, only P 1 with stout subchela, P 4-6 slender, P 7 missing, uropods slender or short and bearing long setae), which can be explained from the way of living of the Paranthuridae.
, though as a philosopher Braun was rather superficial. For him, Cartesian ism was a tool in a rationalist approach to cheology and (particularly) in demarcating theology from philosophy. In this respect, his position is exemplary for the adaptations taking place in institutional philosophy around 1700
Boris Sket and Jos Notenboom
The Niphargus transitivus group includes 12 groundwaterdwellingspecies. It is defined by an upright body position during locomotion,a small, stout body with short appendages, except for long coxae and dactyli, coxae V-VI equilobate or posterolobate, accessory flagellum subject to reduction, and the body endowed with adaptations for volvation (= ability to enroll into a ball).
Jan H. Stock
A new species of Pycnogonida, Anoplodactylus ophiurophilus, is described. It is associated with three species of the genus Ophiocoma in the Seychelles (Indian Ocean) and constitutes the first recorded case of a sea spider found on Ophiuroidea. In comparison with the 83 species actually recognized in Anoplodactylus, the new species shows hardly any morphological adaptations due to this remarkable association.
Thomas E. Bowman and Lazare Botosaneanu
A corallanid isopod in the manca stage (lacking pereopod 7), collected from alluvial gravel along the Batui River in Sulawesi, Indonesia, and identified questionably as Tachaea lacustris Weber, 1892, is illustrated and described in detail. Tachaea lacustris was known previously only from freshwater lakes in Sumatra and Java. Its presence in river alluvial gravel should not be interpreted as possible adaptation to the hyporheic habitat.
Mario Alejandro Salcedo-Vargas
The ultrastructure of the sucker surface is described and its systematic value for mastigoteuthid squids, which bear minute suckers, is considered. An introduction to sucker terms is given and a redefinition of these terms is attempted. Using scanning electron microscopic data, two genera and four subgenera of Mastigoteuthidae from the Northwest Pacific are distinguished. The presence of “cushions” in the sucker is discussed and considered as a character important for understanding adaptations of cephalopods to the deep-sea.
Marie-Charlotte Saint Girons
Dans beaucoup de travaux concernant la répartition des Mammifères, la végétation est étudiée tout particulièrement en tant que source de nourriture et l’importance de la morphologie des plantes est laissée de côté. La morphologie végétale n’est un facteur limite que dans le choix de la „niche écologique” mais n’intervient généralement pas dans la répartition géographique. En revanche, la densité des Mammifères est liée dans de nombreux cas à la morphologie de la végétation, particulièrement pour les mangeurs d’herbe (Rongeurs), moins pour les Insectivores et les petits Carnivores. De nombreux exemples sont donnés concernant les Mammifères d’Europe et d’Afrique du Nord; ils concernent la liaison entre la morphologie des plantes et les nids, le couvert, les points de repères assurés par les plantes, les exceptions et les adaptations, particulièrement dans les îles.
Jan H. Stock
Up to now, the crustacean order Thermosbaenacea contained two genera with only six valid species, five from the panmediterranean region, one from Texas.
Two new members of this curious group of “living fossils” have been discovered in the West Indies. The one, from two deep wells not far from the sea coast in Saint Croix (U.S. Virgin Islands), belongs to an undescribed species of the amphiatlantic genus Monodella, and is called M. sanctaecrucis.
The other was found in several localities in Curaçao (Netherlands’ Antilles), in coral débris of rubble walls on the shore; it belongs to a new genus, Halosbaena showing several remarkable adaptations, e.g. having a uniramous first pereiopod and reductions in the maxilliped. The presence of very numerous specialized elements on the second maxilla and some other characters relate Halosbaena remotely to a species from Jugoslavia, described as Monodella finki. Several other characters of the latter species justify the erection of a new genus for it, called Limnosbaena.
The literature on the possible origin of the Thermosbaenacea is reviewed. Based on the present and other recent discoveries, the origin of the genera Limnosbaena and Monodella (and possibly also of Thermosbaena) at the end of the Tethys period, from marine ancestors, is considered to be the most likely. For the genus Halosbaena a Pleistocene invasion of haline interstitial waters cannot be excluded.
The copepodite antennule development of representatives of 6 harpacticoid families is studied and discussed in detail and that of 8 genera of harpacticoids from 7 families is schematically illustrated. Twenty-seven genera out of 17 harpacticoid families are compared on the basis of own investigations and data from the literature. The origin of newly formed segments can be determined by seta numbers of segments, relative segment length, furrows indicating previous articulations and by the position of the segment which bears the proximal aesthetasc. There are 2 zones of segment formation, both located in the middle part of the first antenna. Normal segment formation takes place distally from the second, aesthetasc-bearing segment from C I to C II and proximally of it from C III to C IV. At least in some species sexual dimorphism of first antennae is present from C II onwards. Females practically show the adult antennular state at C V whereas males undergo important changes from C V to C VI with proximal addition of segments, and often with distal fusions and formation of a unique armature due to adaptations in clasping behaviour. There are specific formation patterns in certain taxonomic groups. E.g. Harpacticidae, Canthocamptidae, Canuellidae and Longipediidae deviate in antennule formation from the rest of Harpacticoida. A higher number of antennular setae of C I which in most of the cases are reduced in C II may be interpreted as indicating an ancestral multisegmented antennule for Harpacticoida.